20210267511

素因数分解:

$3^2\times 7^2\times {\mathrm{3001}}^1\times {\mathrm{15271}}^1$

素因数の和:18292

約数の個数: 36

約数和(自身を含む): 33972289104

約数和(自身を除く): 13762021593

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 3001, 9003, 15271, 21007, 27009, 45813, 63021, 106897, 137439, 147049, 189063, 320691, 441147, 748279, 962073, 1323441, 2244837, 6734511, 45828271, 137484813, 320797897, 412454439, 962393691, 2245585279, 2887181073, 6736755837, 20210267511]

約数ペア:

[(1, 20210267511), (3, 6736755837), (7, 2887181073), (9, 2245585279), (21, 962393691), (49, 412454439), (63, 320797897), (147, 137484813), (441, 45828271), (3001, 6734511), (9003, 2244837), (15271, 1323441), (21007, 962073), (27009, 748279), (45813, 441147), (63021, 320691), (106897, 189063), (137439, 147049)]