221514488

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{359}}^1$

素因数の和:744

約数の個数: 64

約数和(自身を含む): 476280000

約数和(自身を除く): 254765512

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 349, 359, 442, 698, 718, 884, 1396, 1436, 1768, 2792, 2872, 4537, 4667, 5933, 6103, 9074, 9334, 11866, 12206, 18148, 18668, 23732, 24412, 36296, 37336, 47464, 48824, 77129, 79339, 125291, 154258, 158678, 250582, 308516, 317356, 501164, 617032, 634712, 1002328, 1628783, 2129947, 3257566, 4259894, 6515132, 8519788, 13030264, 17039576, 27689311, 55378622, 110757244, 221514488]

約数ペア:

[(1, 221514488), (2, 110757244), (4, 55378622), (8, 27689311), (13, 17039576), (17, 13030264), (26, 8519788), (34, 6515132), (52, 4259894), (68, 3257566), (104, 2129947), (136, 1628783), (221, 1002328), (349, 634712), (359, 617032), (442, 501164), (698, 317356), (718, 308516), (884, 250582), (1396, 158678), (1436, 154258), (1768, 125291), (2792, 79339), (2872, 77129), (4537, 48824), (4667, 47464), (5933, 37336), (6103, 36296), (9074, 24412), (9334, 23732), (11866, 18668), (12206, 18148)]