21249738

素因数分解:

$2^1\times 3^2\times {\mathrm{503}}^1\times {\mathrm{2347}}^1$

素因数の和:2858

約数の個数: 24

約数和(自身を含む): 46152288

約数和(自身を除く): 24902550

約数列:

[1, 2, 3, 6, 9, 18, 503, 1006, 1509, 2347, 3018, 4527, 4694, 7041, 9054, 14082, 21123, 42246, 1180541, 2361082, 3541623, 7083246, 10624869, 21249738]

約数ペア:

[(1, 21249738), (2, 10624869), (3, 7083246), (6, 3541623), (9, 2361082), (18, 1180541), (503, 42246), (1006, 21123), (1509, 14082), (2347, 9054), (3018, 7041), (4527, 4694)]