18061978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:430

約数の個数: 32

約数和(自身を含む): 30837312

約数和(自身を除く): 12775334

約数列:

[1, 2, 11, 22, 43, 61, 86, 122, 313, 473, 626, 671, 946, 1342, 2623, 3443, 5246, 6886, 13459, 19093, 26918, 28853, 38186, 57706, 148049, 210023, 296098, 420046, 820999, 1641998, 9030989, 18061978]

約数ペア:

[(1, 18061978), (2, 9030989), (11, 1641998), (22, 820999), (43, 420046), (61, 296098), (86, 210023), (122, 148049), (313, 57706), (473, 38186), (626, 28853), (671, 26918), (946, 19093), (1342, 13459), (2623, 6886), (3443, 5246)]