18609838

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:316

約数の個数: 32

約数和(自身を含む): 31215744

約数和(自身を除く): 12605906

約数列:

[1, 2, 13, 26, 47, 94, 97, 157, 194, 314, 611, 1222, 1261, 2041, 2522, 4082, 4559, 7379, 9118, 14758, 15229, 30458, 59267, 95927, 118534, 191854, 197977, 395954, 715763, 1431526, 9304919, 18609838]

約数ペア:

[(1, 18609838), (2, 9304919), (13, 1431526), (26, 715763), (47, 395954), (94, 197977), (97, 191854), (157, 118534), (194, 95927), (314, 59267), (611, 30458), (1222, 15229), (1261, 14758), (2041, 9118), (2522, 7379), (4082, 4559)]