21566251

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1427}}^1$

素因数の和:1578

約数の個数: 16

約数和(自身を含む): 26320896

約数和(自身を除く): 4754645

約数列:

[1, 7, 17, 119, 127, 889, 1427, 2159, 9989, 15113, 24259, 169813, 181229, 1268603, 3080893, 21566251]

約数ペア:

[(1, 21566251), (7, 3080893), (17, 1268603), (119, 181229), (127, 169813), (889, 24259), (1427, 15113), (2159, 9989)]