21663304

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12253}}^1$

素因数の和:12289

約数の個数: 32

約数和(自身を含む): 46320120

約数和(自身を除く): 24656816

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 12253, 24506, 49012, 98024, 159289, 208301, 318578, 416602, 637156, 833204, 1274312, 1666408, 2707913, 5415826, 10831652, 21663304]

約数ペア:

[(1, 21663304), (2, 10831652), (4, 5415826), (8, 2707913), (13, 1666408), (17, 1274312), (26, 833204), (34, 637156), (52, 416602), (68, 318578), (104, 208301), (136, 159289), (221, 98024), (442, 49012), (884, 24506), (1768, 12253)]