81719799

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{617}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 136958688

約数和(自身を除く): 55238889

約数列:

[1, 3, 7, 17, 21, 49, 51, 53, 119, 147, 159, 357, 371, 617, 833, 901, 1113, 1851, 2499, 2597, 2703, 4319, 6307, 7791, 10489, 12957, 18921, 30233, 31467, 32701, 44149, 73423, 90699, 98103, 132447, 220269, 228907, 513961, 555917, 686721, 1541883, 1602349, 1667751, 3891419, 4807047, 11674257, 27239933, 81719799]

約数ペア:

[(1, 81719799), (3, 27239933), (7, 11674257), (17, 4807047), (21, 3891419), (49, 1667751), (51, 1602349), (53, 1541883), (119, 686721), (147, 555917), (159, 513961), (357, 228907), (371, 220269), (617, 132447), (833, 98103), (901, 90699), (1113, 73423), (1851, 44149), (2499, 32701), (2597, 31467), (2703, 30233), (4319, 18921), (6307, 12957), (7791, 10489)]