19835431

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 25998336

約数和(自身を除く): 6162905

約数列:

[1, 7, 11, 41, 61, 77, 103, 287, 427, 451, 671, 721, 1133, 2501, 3157, 4223, 4697, 6283, 7931, 17507, 27511, 29561, 43981, 46453, 69113, 192577, 257603, 325171, 483791, 1803221, 2833633, 19835431]

約数ペア:

[(1, 19835431), (7, 2833633), (11, 1803221), (41, 483791), (61, 325171), (77, 257603), (103, 192577), (287, 69113), (427, 46453), (451, 43981), (671, 29561), (721, 27511), (1133, 17507), (2501, 7931), (3157, 6283), (4223, 4697)]