21415628

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{1531}}^1$

素因数の和:1817

約数の個数: 24

約数和(自身を含む): 40536720

約数和(自身を除く): 19121092

約数列:

[1, 2, 4, 13, 26, 52, 269, 538, 1076, 1531, 3062, 3497, 6124, 6994, 13988, 19903, 39806, 79612, 411839, 823678, 1647356, 5353907, 10707814, 21415628]

約数ペア:

[(1, 21415628), (2, 10707814), (4, 5353907), (13, 1647356), (26, 823678), (52, 411839), (269, 79612), (538, 39806), (1076, 19903), (1531, 13988), (3062, 6994), (3497, 6124)]