19421215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{1303}}^1$

素因数の和:1590

約数の個数: 16

約数和(自身を含む): 25537536

約数和(自身を除く): 6116321

約数列:

[1, 5, 11, 55, 271, 1303, 1355, 2981, 6515, 14333, 14905, 71665, 353113, 1765565, 3884243, 19421215]

約数ペア:

[(1, 19421215), (5, 3884243), (11, 1765565), (55, 353113), (271, 71665), (1303, 14905), (1355, 14333), (2981, 6515)]