21175565620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{503}}^1\times {\mathrm{3137}}^1$

素因数の和:3721

約数の個数: 96

約数和(自身を含む): 49420336896

約数和(自身を除く): 28244771276

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 503, 610, 671, 1006, 1220, 1342, 2012, 2515, 2684, 3137, 3355, 5030, 5533, 6274, 6710, 10060, 11066, 12548, 13420, 15685, 22132, 27665, 30683, 31370, 34507, 55330, 61366, 62740, 69014, 110660, 122732, 138028, 153415, 172535, 191357, 306830, 337513, 345070, 382714, 613660, 675026, 690140, 765428, 956785, 1350052, 1577911, 1687565, 1913570, 2104927, 3155822, 3375130, 3827140, 4209854, 6311644, 6750260, 7889555, 8419708, 10524635, 15779110, 17357021, 21049270, 31558220, 34714042, 42098540, 69428084, 86785105, 96252571, 173570210, 192505142, 347140420, 385010284, 481262855, 962525710, 1058778281, 1925051420, 2117556562, 4235113124, 5293891405, 10587782810, 21175565620]

約数ペア:

[(1, 21175565620), (2, 10587782810), (4, 5293891405), (5, 4235113124), (10, 2117556562), (11, 1925051420), (20, 1058778281), (22, 962525710), (44, 481262855), (55, 385010284), (61, 347140420), (110, 192505142), (122, 173570210), (220, 96252571), (244, 86785105), (305, 69428084), (503, 42098540), (610, 34714042), (671, 31558220), (1006, 21049270), (1220, 17357021), (1342, 15779110), (2012, 10524635), (2515, 8419708), (2684, 7889555), (3137, 6750260), (3355, 6311644), (5030, 4209854), (5533, 3827140), (6274, 3375130), (6710, 3155822), (10060, 2104927), (11066, 1913570), (12548, 1687565), (13420, 1577911), (15685, 1350052), (22132, 956785), (27665, 765428), (30683, 690140), (31370, 675026), (34507, 613660), (55330, 382714), (61366, 345070), (62740, 337513), (69014, 306830), (110660, 191357), (122732, 172535), (138028, 153415)]