18142828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 36197280

約数和(自身を除く): 18054452

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 89, 113, 164, 178, 226, 356, 451, 452, 902, 979, 1243, 1804, 1958, 2486, 3649, 3916, 4633, 4972, 7298, 9266, 10057, 14596, 18532, 20114, 40139, 40228, 50963, 80278, 101926, 110627, 160556, 203852, 221254, 412337, 442508, 824674, 1649348, 4535707, 9071414, 18142828]

約数ペア:

[(1, 18142828), (2, 9071414), (4, 4535707), (11, 1649348), (22, 824674), (41, 442508), (44, 412337), (82, 221254), (89, 203852), (113, 160556), (164, 110627), (178, 101926), (226, 80278), (356, 50963), (451, 40228), (452, 40139), (902, 20114), (979, 18532), (1243, 14596), (1804, 10057), (1958, 9266), (2486, 7298), (3649, 4972), (3916, 4633)]