19102355

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{491}}^1$

素因数の和:778

約数の個数: 16

約数和(自身を含む): 23804928

約数和(自身を除く): 4702573

約数列:

[1, 5, 31, 155, 251, 491, 1255, 2455, 7781, 15221, 38905, 76105, 123241, 616205, 3820471, 19102355]

約数ペア:

[(1, 19102355), (5, 3820471), (31, 616205), (155, 123241), (251, 76105), (491, 38905), (1255, 15221), (2455, 7781)]