18121825

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 23609600

約数和(自身を除く): 5487775

約数列:

[1, 5, 25, 31, 67, 155, 335, 349, 775, 1675, 1745, 2077, 8725, 10385, 10819, 23383, 51925, 54095, 116915, 270475, 584575, 724873, 3624365, 18121825]

約数ペア:

[(1, 18121825), (5, 3624365), (25, 724873), (31, 584575), (67, 270475), (155, 116915), (335, 54095), (349, 51925), (775, 23383), (1675, 10819), (1745, 10385), (2077, 8725)]