21408052

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{1831}}^1$

素因数の和:1951

約数の個数: 24

約数和(自身を含む): 38984960

約数和(自身を除く): 17576908

約数列:

[1, 2, 4, 37, 74, 79, 148, 158, 316, 1831, 2923, 3662, 5846, 7324, 11692, 67747, 135494, 144649, 270988, 289298, 578596, 5352013, 10704026, 21408052]

約数ペア:

[(1, 21408052), (2, 10704026), (4, 5352013), (37, 578596), (74, 289298), (79, 270988), (148, 144649), (158, 135494), (316, 67747), (1831, 11692), (2923, 7324), (3662, 5846)]