19869746

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:410

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 13999054

約数列:

[1, 2, 13, 23, 26, 46, 149, 223, 298, 299, 446, 598, 1937, 2899, 3427, 3874, 5129, 5798, 6854, 10258, 33227, 44551, 66454, 66677, 89102, 133354, 431951, 764221, 863902, 1528442, 9934873, 19869746]

約数ペア:

[(1, 19869746), (2, 9934873), (13, 1528442), (23, 863902), (26, 764221), (46, 431951), (149, 133354), (223, 89102), (298, 66677), (299, 66454), (446, 44551), (598, 33227), (1937, 10258), (2899, 6854), (3427, 5798), (3874, 5129)]