21372570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:320

約数の個数: 96

約数和(自身を含む): 60063120

約数和(自身を除く): 38690550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 61, 85, 90, 102, 122, 153, 170, 183, 229, 255, 305, 306, 366, 458, 510, 549, 610, 687, 765, 915, 1037, 1098, 1145, 1374, 1530, 1830, 2061, 2074, 2290, 2745, 3111, 3435, 3893, 4122, 5185, 5490, 6222, 6870, 7786, 9333, 10305, 10370, 11679, 13969, 15555, 18666, 19465, 20610, 23358, 27938, 31110, 35037, 38930, 41907, 46665, 58395, 69845, 70074, 83814, 93330, 116790, 125721, 139690, 175185, 209535, 237473, 251442, 350370, 419070, 474946, 628605, 712419, 1187365, 1257210, 1424838, 2137257, 2374730, 3562095, 4274514, 7124190, 10686285, 21372570]

約数ペア:

[(1, 21372570), (2, 10686285), (3, 7124190), (5, 4274514), (6, 3562095), (9, 2374730), (10, 2137257), (15, 1424838), (17, 1257210), (18, 1187365), (30, 712419), (34, 628605), (45, 474946), (51, 419070), (61, 350370), (85, 251442), (90, 237473), (102, 209535), (122, 175185), (153, 139690), (170, 125721), (183, 116790), (229, 93330), (255, 83814), (305, 70074), (306, 69845), (366, 58395), (458, 46665), (510, 41907), (549, 38930), (610, 35037), (687, 31110), (765, 27938), (915, 23358), (1037, 20610), (1098, 19465), (1145, 18666), (1374, 15555), (1530, 13969), (1830, 11679), (2061, 10370), (2074, 10305), (2290, 9333), (2745, 7786), (3111, 6870), (3435, 6222), (3893, 5490), (4122, 5185)]