21906325

素因数分解:

$5^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{829}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 31287680

約数和(自身を除く): 9381355

約数列:

[1, 5, 7, 25, 35, 151, 175, 755, 829, 1057, 3775, 4145, 5285, 5803, 20725, 26425, 29015, 125179, 145075, 625895, 876253, 3129475, 4381265, 21906325]

約数ペア:

[(1, 21906325), (5, 4381265), (7, 3129475), (25, 876253), (35, 625895), (151, 145075), (175, 125179), (755, 29015), (829, 26425), (1057, 20725), (3775, 5803), (4145, 5285)]