21145125

素因数分解:

$3^1\times 5^3\times {\mathrm{113}}^1\times {\mathrm{499}}^1$

素因数の和:630

約数の個数: 32

約数和(自身を含む): 35568000

約数和(自身を除く): 14422875

約数列:

[1, 3, 5, 15, 25, 75, 113, 125, 339, 375, 499, 565, 1497, 1695, 2495, 2825, 7485, 8475, 12475, 14125, 37425, 42375, 56387, 62375, 169161, 187125, 281935, 845805, 1409675, 4229025, 7048375, 21145125]

約数ペア:

[(1, 21145125), (3, 7048375), (5, 4229025), (15, 1409675), (25, 845805), (75, 281935), (113, 187125), (125, 169161), (339, 62375), (375, 56387), (499, 42375), (565, 37425), (1497, 14125), (1695, 12475), (2495, 8475), (2825, 7485)]