18978001

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1579}}^1$

素因数の和:1704

約数の個数: 16

約数和(自身を含む): 23207040

約数和(自身を除く): 4229039

約数列:

[1, 7, 17, 101, 119, 707, 1579, 1717, 11053, 12019, 26843, 159479, 187901, 1116353, 2711143, 18978001]

約数ペア:

[(1, 18978001), (7, 2711143), (17, 1116353), (101, 187901), (119, 159479), (707, 26843), (1579, 12019), (1717, 11053)]