21045939551

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2677}}^1\times {\mathrm{4547}}^1$

素因数の和:7263

約数の個数: 32

約数和(自身を含む): 27282178560

約数和(自身を除く): 6236239009

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 2677, 4547, 18739, 31829, 34801, 50863, 59111, 86393, 243607, 356041, 413777, 604751, 661219, 1123109, 4628533, 7861763, 12172319, 85206233, 158240147, 231274061, 1107681029, 1618918427, 3006562793, 21045939551]

約数ペア:

[(1, 21045939551), (7, 3006562793), (13, 1618918427), (19, 1107681029), (91, 231274061), (133, 158240147), (247, 85206233), (1729, 12172319), (2677, 7861763), (4547, 4628533), (18739, 1123109), (31829, 661219), (34801, 604751), (50863, 413777), (59111, 356041), (86393, 243607)]