21921020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2693}}^1$

素因数の和:2750

約数の個数: 48

約数和(自身を含む): 51595488

約数和(自身を除く): 29674468

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 2693, 4070, 5386, 8140, 10772, 13465, 26930, 29623, 53860, 59246, 99641, 118492, 148115, 199282, 296230, 398564, 498205, 592460, 996410, 1096051, 1992820, 2192102, 4384204, 5480255, 10960510, 21921020]

約数ペア:

[(1, 21921020), (2, 10960510), (4, 5480255), (5, 4384204), (10, 2192102), (11, 1992820), (20, 1096051), (22, 996410), (37, 592460), (44, 498205), (55, 398564), (74, 296230), (110, 199282), (148, 148115), (185, 118492), (220, 99641), (370, 59246), (407, 53860), (740, 29623), (814, 26930), (1628, 13465), (2035, 10772), (2693, 8140), (4070, 5386)]