15680511

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^4\times {\mathrm{17}}^1$

素因数の和:74

約数の個数: 60

約数和(自身を含む): 30148560

約数和(自身を除く): 14468049

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 51, 63, 77, 99, 119, 121, 153, 187, 231, 357, 363, 561, 693, 847, 1071, 1089, 1309, 1331, 1683, 2057, 2541, 3927, 3993, 6171, 7623, 9317, 11781, 11979, 14399, 14641, 18513, 22627, 27951, 43197, 43923, 67881, 83853, 102487, 129591, 131769, 158389, 203643, 248897, 307461, 475167, 746691, 922383, 1425501, 1742279, 2240073, 5226837, 15680511]

約数ペア:

[(1, 15680511), (3, 5226837), (7, 2240073), (9, 1742279), (11, 1425501), (17, 922383), (21, 746691), (33, 475167), (51, 307461), (63, 248897), (77, 203643), (99, 158389), (119, 131769), (121, 129591), (153, 102487), (187, 83853), (231, 67881), (357, 43923), (363, 43197), (561, 27951), (693, 22627), (847, 18513), (1071, 14641), (1089, 14399), (1309, 11979), (1331, 11781), (1683, 9317), (2057, 7623), (2541, 6171), (3927, 3993)]