18925641

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 33965568

約数和(自身を除く): 15039927

約数列:

[1, 3, 7, 9, 17, 21, 41, 51, 63, 119, 123, 153, 287, 357, 369, 431, 697, 861, 1071, 1293, 2091, 2583, 3017, 3879, 4879, 6273, 7327, 9051, 14637, 17671, 21981, 27153, 43911, 51289, 53013, 65943, 123697, 153867, 159039, 300407, 371091, 461601, 901221, 1113273, 2102849, 2703663, 6308547, 18925641]

約数ペア:

[(1, 18925641), (3, 6308547), (7, 2703663), (9, 2102849), (17, 1113273), (21, 901221), (41, 461601), (51, 371091), (63, 300407), (119, 159039), (123, 153867), (153, 123697), (287, 65943), (357, 53013), (369, 51289), (431, 43911), (697, 27153), (861, 21981), (1071, 17671), (1293, 14637), (2091, 9051), (2583, 7327), (3017, 6273), (3879, 4879)]