21144888974120

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3243081131}}^1$

素因数の和:3243081305

約数の個数: 32

約数和(自身を含む): 47867877508320

約数和(自身を除く): 26722988534200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 3243081131, 6486162262, 12972324524, 16215405655, 25944649048, 32430811310, 64861622620, 129723245240, 528622224353, 1057244448706, 2114488897412, 2643111121765, 4228977794824, 5286222243530, 10572444487060, 21144888974120]

約数ペア:

[(1, 21144888974120), (2, 10572444487060), (4, 5286222243530), (5, 4228977794824), (8, 2643111121765), (10, 2114488897412), (20, 1057244448706), (40, 528622224353), (163, 129723245240), (326, 64861622620), (652, 32430811310), (815, 25944649048), (1304, 16215405655), (1630, 12972324524), (3260, 6486162262), (6520, 3243081131)]