19894175

素因数分解:

$5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1439}}^1$

素因数の和:1535

約数の個数: 24

約数和(自身を含む): 28569600

約数和(自身を除く): 8675425

約数列:

[1, 5, 7, 25, 35, 79, 175, 395, 553, 1439, 1975, 2765, 7195, 10073, 13825, 35975, 50365, 113681, 251825, 568405, 795767, 2842025, 3978835, 19894175]

約数ペア:

[(1, 19894175), (5, 3978835), (7, 2842025), (25, 795767), (35, 568405), (79, 251825), (175, 113681), (395, 50365), (553, 35975), (1439, 13825), (1975, 10073), (2765, 7195)]