21897480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:391

約数の個数: 128

約数和(自身を含む): 73249920

約数和(自身を除く): 51352440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 53, 55, 60, 66, 88, 106, 110, 120, 132, 159, 165, 212, 220, 264, 265, 313, 318, 330, 424, 440, 530, 583, 626, 636, 660, 795, 939, 1060, 1166, 1252, 1272, 1320, 1565, 1590, 1749, 1878, 2120, 2332, 2504, 2915, 3130, 3180, 3443, 3498, 3756, 4664, 4695, 5830, 6260, 6360, 6886, 6996, 7512, 8745, 9390, 10329, 11660, 12520, 13772, 13992, 16589, 17215, 17490, 18780, 20658, 23320, 27544, 33178, 34430, 34980, 37560, 41316, 49767, 51645, 66356, 68860, 69960, 82632, 82945, 99534, 103290, 132712, 137720, 165890, 182479, 199068, 206580, 248835, 331780, 364958, 398136, 413160, 497670, 547437, 663560, 729916, 912395, 995340, 1094874, 1459832, 1824790, 1990680, 2189748, 2737185, 3649580, 4379496, 5474370, 7299160, 10948740, 21897480]

約数ペア:

[(1, 21897480), (2, 10948740), (3, 7299160), (4, 5474370), (5, 4379496), (6, 3649580), (8, 2737185), (10, 2189748), (11, 1990680), (12, 1824790), (15, 1459832), (20, 1094874), (22, 995340), (24, 912395), (30, 729916), (33, 663560), (40, 547437), (44, 497670), (53, 413160), (55, 398136), (60, 364958), (66, 331780), (88, 248835), (106, 206580), (110, 199068), (120, 182479), (132, 165890), (159, 137720), (165, 132712), (212, 103290), (220, 99534), (264, 82945), (265, 82632), (313, 69960), (318, 68860), (330, 66356), (424, 51645), (440, 49767), (530, 41316), (583, 37560), (626, 34980), (636, 34430), (660, 33178), (795, 27544), (939, 23320), (1060, 20658), (1166, 18780), (1252, 17490), (1272, 17215), (1320, 16589), (1565, 13992), (1590, 13772), (1749, 12520), (1878, 11660), (2120, 10329), (2332, 9390), (2504, 8745), (2915, 7512), (3130, 6996), (3180, 6886), (3443, 6360), (3498, 6260), (3756, 5830), (4664, 4695)]