54967647

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1949}}^1$

素因数の和:2055

約数の個数: 32

約数和(自身を含む): 89856000

約数和(自身を除く): 34888353

約数列:

[1, 3, 7, 17, 21, 51, 79, 119, 237, 357, 553, 1343, 1659, 1949, 4029, 5847, 9401, 13643, 28203, 33133, 40929, 99399, 153971, 231931, 461913, 695793, 1077797, 2617507, 3233391, 7852521, 18322549, 54967647]

約数ペア:

[(1, 54967647), (3, 18322549), (7, 7852521), (17, 3233391), (21, 2617507), (51, 1077797), (79, 695793), (119, 461913), (237, 231931), (357, 153971), (553, 99399), (1343, 40929), (1659, 33133), (1949, 28203), (4029, 13643), (5847, 9401)]