21718862

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{233}}^1$

素因数の和:488

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 16020658

約数列:

[1, 2, 11, 19, 22, 38, 209, 223, 233, 418, 446, 466, 2453, 2563, 4237, 4427, 4906, 5126, 8474, 8854, 46607, 48697, 51959, 93214, 97394, 103918, 571549, 987221, 1143098, 1974442, 10859431, 21718862]

約数ペア:

[(1, 21718862), (2, 10859431), (11, 1974442), (19, 1143098), (22, 987221), (38, 571549), (209, 103918), (223, 97394), (233, 93214), (418, 51959), (446, 48697), (466, 46607), (2453, 8854), (2563, 8474), (4237, 5126), (4427, 4906)]