21517025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{467}}^1$

素因数の和:593

約数の個数: 24

約数和(自身を含む): 28435680

約数和(自身を除く): 6918655

約数列:

[1, 5, 19, 25, 95, 97, 467, 475, 485, 1843, 2335, 2425, 8873, 9215, 11675, 44365, 45299, 46075, 221825, 226495, 860681, 1132475, 4303405, 21517025]

約数ペア:

[(1, 21517025), (5, 4303405), (19, 1132475), (25, 860681), (95, 226495), (97, 221825), (467, 46075), (475, 45299), (485, 44365), (1843, 11675), (2335, 9215), (2425, 8873)]