31080777

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 55770624

約数和(自身を除く): 24689847

約数列:

[1, 3, 7, 13, 17, 21, 37, 39, 51, 91, 111, 119, 181, 221, 259, 273, 357, 481, 543, 629, 663, 777, 1267, 1443, 1547, 1887, 2353, 3077, 3367, 3801, 4403, 4641, 6697, 7059, 8177, 9231, 10101, 13209, 16471, 20091, 21539, 24531, 40001, 46879, 49413, 57239, 64617, 87061, 113849, 120003, 140637, 171717, 261183, 280007, 341547, 609427, 796943, 840021, 1480037, 1828281, 2390829, 4440111, 10360259, 31080777]

約数ペア:

[(1, 31080777), (3, 10360259), (7, 4440111), (13, 2390829), (17, 1828281), (21, 1480037), (37, 840021), (39, 796943), (51, 609427), (91, 341547), (111, 280007), (119, 261183), (181, 171717), (221, 140637), (259, 120003), (273, 113849), (357, 87061), (481, 64617), (543, 57239), (629, 49413), (663, 46879), (777, 40001), (1267, 24531), (1443, 21539), (1547, 20091), (1887, 16471), (2353, 13209), (3077, 10101), (3367, 9231), (3801, 8177), (4403, 7059), (4641, 6697)]