18858564

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 50960000

約数和(自身を除く): 32101436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 79, 114, 158, 171, 228, 237, 316, 342, 349, 474, 684, 698, 711, 948, 1047, 1396, 1422, 1501, 2094, 2844, 3002, 3141, 4188, 4503, 6004, 6282, 6631, 9006, 12564, 13262, 13509, 18012, 19893, 26524, 27018, 27571, 39786, 54036, 55142, 59679, 79572, 82713, 110284, 119358, 165426, 238716, 248139, 330852, 496278, 523849, 992556, 1047698, 1571547, 2095396, 3143094, 4714641, 6286188, 9429282, 18858564]

約数ペア:

[(1, 18858564), (2, 9429282), (3, 6286188), (4, 4714641), (6, 3143094), (9, 2095396), (12, 1571547), (18, 1047698), (19, 992556), (36, 523849), (38, 496278), (57, 330852), (76, 248139), (79, 238716), (114, 165426), (158, 119358), (171, 110284), (228, 82713), (237, 79572), (316, 59679), (342, 55142), (349, 54036), (474, 39786), (684, 27571), (698, 27018), (711, 26524), (948, 19893), (1047, 18012), (1396, 13509), (1422, 13262), (1501, 12564), (2094, 9006), (2844, 6631), (3002, 6282), (3141, 6004), (4188, 4503)]