20144518

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{1013}}^1$

素因数の和:1239

約数の個数: 16

約数和(自身を含む): 30931056

約数和(自身を除く): 10786538

約数列:

[1, 2, 61, 122, 163, 326, 1013, 2026, 9943, 19886, 61793, 123586, 165119, 330238, 10072259, 20144518]

約数ペア:

[(1, 20144518), (2, 10072259), (61, 330238), (122, 165119), (163, 123586), (326, 61793), (1013, 19886), (2026, 9943)]