18965876

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4091}}^1$

素因数の和:4175

約数の個数: 24

約数和(自身を含む): 35518560

約数和(自身を除く): 16552684

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4091, 4636, 8182, 16364, 77729, 155458, 249551, 310916, 499102, 998204, 4741469, 9482938, 18965876]

約数ペア:

[(1, 18965876), (2, 9482938), (4, 4741469), (19, 998204), (38, 499102), (61, 310916), (76, 249551), (122, 155458), (244, 77729), (1159, 16364), (2318, 8182), (4091, 4636)]