2021725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 24

約数和(自身を含む): 2731968

約数和(自身を除く): 710243

約数列:

[1, 5, 17, 25, 67, 71, 85, 335, 355, 425, 1139, 1207, 1675, 1775, 4757, 5695, 6035, 23785, 28475, 30175, 80869, 118925, 404345, 2021725]

約数ペア:

[(1, 2021725), (5, 404345), (17, 118925), (25, 80869), (67, 30175), (71, 28475), (85, 23785), (335, 6035), (355, 5695), (425, 4757), (1139, 1775), (1207, 1675)]