21604878

素因数分解:

$2^1\times 3^2\times {\mathrm{421}}^1\times {\mathrm{2851}}^1$

素因数の和:3280

約数の個数: 24

約数和(自身を含む): 46938216

約数和(自身を除く): 25333338

約数列:

[1, 2, 3, 6, 9, 18, 421, 842, 1263, 2526, 2851, 3789, 5702, 7578, 8553, 17106, 25659, 51318, 1200271, 2400542, 3600813, 7201626, 10802439, 21604878]

約数ペア:

[(1, 21604878), (2, 10802439), (3, 7201626), (6, 3600813), (9, 2400542), (18, 1200271), (421, 51318), (842, 25659), (1263, 17106), (2526, 8553), (2851, 7578), (3789, 5702)]