25508301

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{419}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 42147840

約数和(自身を除く): 16639539

約数列:

[1, 3, 7, 13, 21, 39, 91, 223, 273, 419, 669, 1257, 1561, 2899, 2933, 4683, 5447, 8697, 8799, 16341, 20293, 38129, 60879, 93437, 114387, 280311, 654059, 1214681, 1962177, 3644043, 8502767, 25508301]

約数ペア:

[(1, 25508301), (3, 8502767), (7, 3644043), (13, 1962177), (21, 1214681), (39, 654059), (91, 280311), (223, 114387), (273, 93437), (419, 60879), (669, 38129), (1257, 20293), (1561, 16341), (2899, 8799), (2933, 8697), (4683, 5447)]