2155125

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{821}}^1$

素因数の和:846

約数の個数: 32

約数和(自身を含む): 4103424

約数和(自身を除く): 1948299

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 375, 525, 821, 875, 2463, 2625, 4105, 5747, 12315, 17241, 20525, 28735, 61575, 86205, 102625, 143675, 307875, 431025, 718375, 2155125]

約数ペア:

[(1, 2155125), (3, 718375), (5, 431025), (7, 307875), (15, 143675), (21, 102625), (25, 86205), (35, 61575), (75, 28735), (105, 20525), (125, 17241), (175, 12315), (375, 5747), (525, 4105), (821, 2625), (875, 2463)]