21000273848

素因数分解:

$2^3\times {\mathrm{1783}}^1\times {\mathrm{1472257}}^1$

素因数の和:1474046

約数の個数: 16

約数和(自身を含む): 39397624080

約数和(自身を除く): 18397350232

約数列:

[1, 2, 4, 8, 1783, 3566, 7132, 14264, 1472257, 2944514, 5889028, 11778056, 2625034231, 5250068462, 10500136924, 21000273848]

約数ペア:

[(1, 21000273848), (2, 10500136924), (4, 5250068462), (8, 2625034231), (1783, 11778056), (3566, 5889028), (7132, 2944514), (14264, 1472257)]