18171828

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{857}}^1$

素因数の和:917

約数の個数: 72

約数和(自身を含む): 49969920

約数和(自身を除く): 31798092

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 31, 36, 38, 57, 62, 76, 93, 114, 124, 171, 186, 228, 279, 342, 372, 558, 589, 684, 857, 1116, 1178, 1714, 1767, 2356, 2571, 3428, 3534, 5142, 5301, 7068, 7713, 10284, 10602, 15426, 16283, 21204, 26567, 30852, 32566, 48849, 53134, 65132, 79701, 97698, 106268, 146547, 159402, 195396, 239103, 293094, 318804, 478206, 504773, 586188, 956412, 1009546, 1514319, 2019092, 3028638, 4542957, 6057276, 9085914, 18171828]

約数ペア:

[(1, 18171828), (2, 9085914), (3, 6057276), (4, 4542957), (6, 3028638), (9, 2019092), (12, 1514319), (18, 1009546), (19, 956412), (31, 586188), (36, 504773), (38, 478206), (57, 318804), (62, 293094), (76, 239103), (93, 195396), (114, 159402), (124, 146547), (171, 106268), (186, 97698), (228, 79701), (279, 65132), (342, 53134), (372, 48849), (558, 32566), (589, 30852), (684, 26567), (857, 21204), (1116, 16283), (1178, 15426), (1714, 10602), (1767, 10284), (2356, 7713), (2571, 7068), (3428, 5301), (3534, 5142)]