21397622220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{537899}}^1$

素因数の和:537944

約数の個数: 144

約数和(自身を含む): 74010736800

約数和(自身を除く): 52613114580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 663, 765, 780, 884, 1020, 1105, 1170, 1326, 1530, 1989, 2210, 2340, 2652, 3060, 3315, 3978, 4420, 6630, 7956, 9945, 13260, 19890, 39780, 537899, 1075798, 1613697, 2151596, 2689495, 3227394, 4841091, 5378990, 6454788, 6992687, 8068485, 9144283, 9682182, 10757980, 13985374, 16136970, 18288566, 19364364, 20978061, 24205455, 27432849, 27970748, 32273940, 34963435, 36577132, 41956122, 45721415, 48410910, 54865698, 62934183, 69926870, 82298547, 83912244, 91442830, 96821820, 104890305, 109731396, 118875679, 125868366, 137164245, 139853740, 164597094, 182885660, 209780610, 237751358, 251736732, 274328490, 314670915, 329194188, 356627037, 411492735, 419561220, 475502716, 548656980, 594378395, 629341830, 713254074, 822985470, 1069881111, 1188756790, 1258683660, 1426508148, 1645970940, 1783135185, 2139762222, 2377513580, 3566270370, 4279524444, 5349405555, 7132540740, 10698811110, 21397622220]

約数ペア:

[(1, 21397622220), (2, 10698811110), (3, 7132540740), (4, 5349405555), (5, 4279524444), (6, 3566270370), (9, 2377513580), (10, 2139762222), (12, 1783135185), (13, 1645970940), (15, 1426508148), (17, 1258683660), (18, 1188756790), (20, 1069881111), (26, 822985470), (30, 713254074), (34, 629341830), (36, 594378395), (39, 548656980), (45, 475502716), (51, 419561220), (52, 411492735), (60, 356627037), (65, 329194188), (68, 314670915), (78, 274328490), (85, 251736732), (90, 237751358), (102, 209780610), (117, 182885660), (130, 164597094), (153, 139853740), (156, 137164245), (170, 125868366), (180, 118875679), (195, 109731396), (204, 104890305), (221, 96821820), (234, 91442830), (255, 83912244), (260, 82298547), (306, 69926870), (340, 62934183), (390, 54865698), (442, 48410910), (468, 45721415), (510, 41956122), (585, 36577132), (612, 34963435), (663, 32273940), (765, 27970748), (780, 27432849), (884, 24205455), (1020, 20978061), (1105, 19364364), (1170, 18288566), (1326, 16136970), (1530, 13985374), (1989, 10757980), (2210, 9682182), (2340, 9144283), (2652, 8068485), (3060, 6992687), (3315, 6454788), (3978, 5378990), (4420, 4841091), (6630, 3227394), (7956, 2689495), (9945, 2151596), (13260, 1613697), (19890, 1075798), (39780, 537899)]