1978966

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3911}}^1$

素因数の和:3947

約数の個数: 16

約数和(自身を含む): 3379968

約数和(自身を除く): 1401002

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 3911, 7822, 43021, 86042, 89953, 179906, 989483, 1978966]

約数ペア:

[(1, 1978966), (2, 989483), (11, 179906), (22, 89953), (23, 86042), (46, 43021), (253, 7822), (506, 3911)]