21402078

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{53239}}^1$

素因数の和:53311

約数の個数: 16

約数和(自身を含む): 43443840

約数和(自身を除く): 22041762

約数列:

[1, 2, 3, 6, 67, 134, 201, 402, 53239, 106478, 159717, 319434, 3567013, 7134026, 10701039, 21402078]

約数ペア:

[(1, 21402078), (2, 10701039), (3, 7134026), (6, 3567013), (67, 319434), (134, 159717), (201, 106478), (402, 53239)]