21121730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15881}}^1$

素因数の和:15914

約数の個数: 32

約数和(自身を含む): 45740160

約数和(自身を除く): 24618430

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 15881, 31762, 79405, 111167, 158810, 222334, 301739, 555835, 603478, 1111670, 1508695, 2112173, 3017390, 4224346, 10560865, 21121730]

約数ペア:

[(1, 21121730), (2, 10560865), (5, 4224346), (7, 3017390), (10, 2112173), (14, 1508695), (19, 1111670), (35, 603478), (38, 555835), (70, 301739), (95, 222334), (133, 158810), (190, 111167), (266, 79405), (665, 31762), (1330, 15881)]