31291806

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:505

約数の個数: 64

約数和(自身を含む): 77672448

約数和(自身を除く): 46380642

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 223, 257, 273, 446, 514, 546, 669, 771, 1338, 1542, 1561, 1799, 2899, 3122, 3341, 3598, 4683, 5397, 5798, 6682, 8697, 9366, 10023, 10794, 17394, 20046, 20293, 23387, 40586, 46774, 57311, 60879, 70161, 114622, 121758, 140322, 171933, 343866, 401177, 745043, 802354, 1203531, 1490086, 2235129, 2407062, 4470258, 5215301, 10430602, 15645903, 31291806]

約数ペア:

[(1, 31291806), (2, 15645903), (3, 10430602), (6, 5215301), (7, 4470258), (13, 2407062), (14, 2235129), (21, 1490086), (26, 1203531), (39, 802354), (42, 745043), (78, 401177), (91, 343866), (182, 171933), (223, 140322), (257, 121758), (273, 114622), (446, 70161), (514, 60879), (546, 57311), (669, 46774), (771, 40586), (1338, 23387), (1542, 20293), (1561, 20046), (1799, 17394), (2899, 10794), (3122, 10023), (3341, 9366), (3598, 8697), (4683, 6682), (5397, 5798)]