2638988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1621}}^1$

素因数の和:1673

約数の個数: 24

約数和(自身を含む): 5177424

約数和(自身を除く): 2538436

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1621, 1628, 3242, 6484, 17831, 35662, 59977, 71324, 119954, 239908, 659747, 1319494, 2638988]

約数ペア:

[(1, 2638988), (2, 1319494), (4, 659747), (11, 239908), (22, 119954), (37, 71324), (44, 59977), (74, 35662), (148, 17831), (407, 6484), (814, 3242), (1621, 1628)]