19375499

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 24482304

約数和(自身を除く): 5106805

約数列:

[1, 11, 13, 23, 43, 137, 143, 253, 299, 473, 559, 989, 1507, 1781, 3151, 3289, 5891, 6149, 10879, 12857, 19591, 34661, 40963, 64801, 76583, 135493, 141427, 450593, 842413, 1490423, 1761409, 19375499]

約数ペア:

[(1, 19375499), (11, 1761409), (13, 1490423), (23, 842413), (43, 450593), (137, 141427), (143, 135493), (253, 76583), (299, 64801), (473, 40963), (559, 34661), (989, 19591), (1507, 12857), (1781, 10879), (3151, 6149), (3289, 5891)]