21861296

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{20393}}^1$

素因数の和:20468

約数の個数: 20

約数和(自身を含む): 42990552

約数和(自身を除く): 21129256

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 20393, 40786, 81572, 163144, 326288, 1366331, 2732662, 5465324, 10930648, 21861296]

約数ペア:

[(1, 21861296), (2, 10930648), (4, 5465324), (8, 2732662), (16, 1366331), (67, 326288), (134, 163144), (268, 81572), (536, 40786), (1072, 20393)]