20159478

素因数分解:

$2^1\times 3^2\times {\mathrm{491}}^1\times {\mathrm{2281}}^1$

素因数の和:2780

約数の個数: 24

約数和(自身を含む): 43787016

約数和(自身を除く): 23627538

約数列:

[1, 2, 3, 6, 9, 18, 491, 982, 1473, 2281, 2946, 4419, 4562, 6843, 8838, 13686, 20529, 41058, 1119971, 2239942, 3359913, 6719826, 10079739, 20159478]

約数ペア:

[(1, 20159478), (2, 10079739), (3, 6719826), (6, 3359913), (9, 2239942), (18, 1119971), (491, 41058), (982, 20529), (1473, 13686), (2281, 8838), (2946, 6843), (4419, 4562)]