21293584

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4451}}^1$

素因数の和:4495

約数の個数: 40

約数和(自身を含む): 46372032

約数和(自身を除く): 25078448

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 92, 104, 184, 208, 299, 368, 598, 1196, 2392, 4451, 4784, 8902, 17804, 35608, 57863, 71216, 102373, 115726, 204746, 231452, 409492, 462904, 818984, 925808, 1330849, 1637968, 2661698, 5323396, 10646792, 21293584]

約数ペア:

[(1, 21293584), (2, 10646792), (4, 5323396), (8, 2661698), (13, 1637968), (16, 1330849), (23, 925808), (26, 818984), (46, 462904), (52, 409492), (92, 231452), (104, 204746), (184, 115726), (208, 102373), (299, 71216), (368, 57863), (598, 35608), (1196, 17804), (2392, 8902), (4451, 4784)]