21951094

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{1487}}^1$

素因数の和:1572

約数の個数: 24

約数和(自身を含む): 36810144

約数和(自身を除く): 14859050

約数列:

[1, 2, 11, 22, 61, 121, 122, 242, 671, 1342, 1487, 2974, 7381, 14762, 16357, 32714, 90707, 179927, 181414, 359854, 997777, 1995554, 10975547, 21951094]

約数ペア:

[(1, 21951094), (2, 10975547), (11, 1995554), (22, 997777), (61, 359854), (121, 181414), (122, 179927), (242, 90707), (671, 32714), (1342, 16357), (1487, 14762), (2974, 7381)]