21374717

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7577}}^1$

素因数の和:7628

約数の個数: 16

約数和(自身を含む): 27159552

約数和(自身を除く): 5784835

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 7577, 53039, 98501, 234887, 689507, 1644209, 3053531, 21374717]

約数ペア:

[(1, 21374717), (7, 3053531), (13, 1644209), (31, 689507), (91, 234887), (217, 98501), (403, 53039), (2821, 7577)]