18727812

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:529

約数の個数: 72

約数和(自身を含む): 50948352

約数和(自身を除く): 32220540

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 71, 102, 142, 153, 204, 213, 284, 306, 426, 431, 612, 639, 852, 862, 1207, 1278, 1293, 1724, 2414, 2556, 2586, 3621, 3879, 4828, 5172, 7242, 7327, 7758, 10863, 14484, 14654, 15516, 21726, 21981, 29308, 30601, 43452, 43962, 61202, 65943, 87924, 91803, 122404, 131886, 183606, 263772, 275409, 367212, 520217, 550818, 1040434, 1101636, 1560651, 2080868, 3121302, 4681953, 6242604, 9363906, 18727812]

約数ペア:

[(1, 18727812), (2, 9363906), (3, 6242604), (4, 4681953), (6, 3121302), (9, 2080868), (12, 1560651), (17, 1101636), (18, 1040434), (34, 550818), (36, 520217), (51, 367212), (68, 275409), (71, 263772), (102, 183606), (142, 131886), (153, 122404), (204, 91803), (213, 87924), (284, 65943), (306, 61202), (426, 43962), (431, 43452), (612, 30601), (639, 29308), (852, 21981), (862, 21726), (1207, 15516), (1278, 14654), (1293, 14484), (1724, 10863), (2414, 7758), (2556, 7327), (2586, 7242), (3621, 5172), (3879, 4828)]