21104875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{15349}}^1$

素因数の和:15375

約数の個数: 16

約数和(自身を含む): 28735200

約数和(自身を除く): 7630325

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 15349, 76745, 168839, 383725, 844195, 1918625, 4220975, 21104875]

約数ペア:

[(1, 21104875), (5, 4220975), (11, 1918625), (25, 844195), (55, 383725), (125, 168839), (275, 76745), (1375, 15349)]