18985274

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:171

約数の個数: 64

約数和(自身を含む): 37711872

約数和(自身を除く): 18726598

約数列:

[1, 2, 7, 11, 14, 22, 43, 47, 61, 77, 86, 94, 122, 154, 301, 329, 427, 473, 517, 602, 658, 671, 854, 946, 1034, 1342, 2021, 2623, 2867, 3311, 3619, 4042, 4697, 5246, 5734, 6622, 7238, 9394, 14147, 18361, 20069, 22231, 28294, 28853, 31537, 36722, 40138, 44462, 57706, 63074, 123281, 155617, 201971, 220759, 246562, 311234, 403942, 441518, 862967, 1356091, 1725934, 2712182, 9492637, 18985274]

約数ペア:

[(1, 18985274), (2, 9492637), (7, 2712182), (11, 1725934), (14, 1356091), (22, 862967), (43, 441518), (47, 403942), (61, 311234), (77, 246562), (86, 220759), (94, 201971), (122, 155617), (154, 123281), (301, 63074), (329, 57706), (427, 44462), (473, 40138), (517, 36722), (602, 31537), (658, 28853), (671, 28294), (854, 22231), (946, 20069), (1034, 18361), (1342, 14147), (2021, 9394), (2623, 7238), (2867, 6622), (3311, 5734), (3619, 5246), (4042, 4697)]