18690806687

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1903147}}^1$

素因数の和:1903238

約数の個数: 16

約数和(自身を含む): 22655073792

約数和(自身を除く): 3964267105

約数列:

[1, 7, 23, 61, 161, 427, 1403, 9821, 1903147, 13322029, 43772381, 116091967, 306406667, 812643769, 2670115241, 18690806687]

約数ペア:

[(1, 18690806687), (7, 2670115241), (23, 812643769), (61, 306406667), (161, 116091967), (427, 43772381), (1403, 13322029), (9821, 1903147)]