66721655

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{13331}}^1$

素因数の和:13367

約数の個数: 32

約数和(自身を含む): 107509248

約数和(自身を除く): 40787593

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 385, 455, 715, 1001, 5005, 13331, 66655, 93317, 146641, 173303, 466585, 733205, 866515, 1026487, 1213121, 1906333, 5132435, 6065605, 9531665, 13344331, 66721655]

約数ペア:

[(1, 66721655), (5, 13344331), (7, 9531665), (11, 6065605), (13, 5132435), (35, 1906333), (55, 1213121), (65, 1026487), (77, 866515), (91, 733205), (143, 466585), (385, 173303), (455, 146641), (715, 93317), (1001, 66655), (5005, 13331)]