21491323204

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2973343}}^1$

素因数の和:2973499

約数の個数: 24

約数和(自身を含む): 40794279680

約数和(自身を除く): 19302956476

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 3614, 7228, 2973343, 5946686, 11893372, 38653459, 77306918, 154613836, 413294677, 826589354, 1653178708, 5372830801, 10745661602, 21491323204]

約数ペア:

[(1, 21491323204), (2, 10745661602), (4, 5372830801), (13, 1653178708), (26, 826589354), (52, 413294677), (139, 154613836), (278, 77306918), (556, 38653459), (1807, 11893372), (3614, 5946686), (7228, 2973343)]