21714355

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 30469824

約数和(自身を除く): 8755469

約数列:

[1, 5, 13, 17, 43, 65, 85, 215, 221, 457, 559, 731, 1105, 2285, 2795, 3655, 5941, 7769, 9503, 19651, 29705, 38845, 47515, 98255, 100997, 255463, 334067, 504985, 1277315, 1670335, 4342871, 21714355]

約数ペア:

[(1, 21714355), (5, 4342871), (13, 1670335), (17, 1277315), (43, 504985), (65, 334067), (85, 255463), (215, 100997), (221, 98255), (457, 47515), (559, 38845), (731, 29705), (1105, 19651), (2285, 9503), (2795, 7769), (3655, 5941)]