21398218

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{2459}}^1$

素因数の和:2709

約数の個数: 16

約数和(自身を含む): 33948000

約数和(自身を除く): 12549782

約数列:

[1, 2, 19, 38, 229, 458, 2459, 4351, 4918, 8702, 46721, 93442, 563111, 1126222, 10699109, 21398218]

約数ペア:

[(1, 21398218), (2, 10699109), (19, 1126222), (38, 563111), (229, 93442), (458, 46721), (2459, 8702), (4351, 4918)]