21345250

素因数分解:

$2^1\times 5^3\times {\mathrm{85381}}^1$

素因数の和:85398

約数の個数: 16

約数和(自身を含む): 39958776

約数和(自身を除く): 18613526

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 85381, 170762, 426905, 853810, 2134525, 4269050, 10672625, 21345250]

約数ペア:

[(1, 21345250), (2, 10672625), (5, 4269050), (10, 2134525), (25, 853810), (50, 426905), (125, 170762), (250, 85381)]