19664218

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{353}}^1$

素因数の和:558

約数の個数: 32

約数和(自身を含む): 35479296

約数和(自身を除く): 15815078

約数列:

[1, 2, 7, 14, 23, 46, 161, 173, 322, 346, 353, 706, 1211, 2422, 2471, 3979, 4942, 7958, 8119, 16238, 27853, 55706, 56833, 61069, 113666, 122138, 427483, 854966, 1404587, 2809174, 9832109, 19664218]

約数ペア:

[(1, 19664218), (2, 9832109), (7, 2809174), (14, 1404587), (23, 854966), (46, 427483), (161, 122138), (173, 113666), (322, 61069), (346, 56833), (353, 55706), (706, 27853), (1211, 16238), (2422, 8119), (2471, 7958), (3979, 4942)]