21841375

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:216

約数の個数: 32

約数和(自身を含む): 29113344

約数和(自身を除く): 7271969

約数列:

[1, 5, 23, 25, 71, 107, 115, 125, 355, 535, 575, 1633, 1775, 2461, 2675, 2875, 7597, 8165, 8875, 12305, 13375, 37985, 40825, 61525, 174731, 189925, 204125, 307625, 873655, 949625, 4368275, 21841375]

約数ペア:

[(1, 21841375), (5, 4368275), (23, 949625), (25, 873655), (71, 307625), (107, 204125), (115, 189925), (125, 174731), (355, 61525), (535, 40825), (575, 37985), (1633, 13375), (1775, 12305), (2461, 8875), (2675, 8165), (2875, 7597)]