21906068

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{181}}^1\times {\mathrm{383}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 39137280

約数和(自身を除く): 17231212

約数列:

[1, 2, 4, 79, 158, 181, 316, 362, 383, 724, 766, 1532, 14299, 28598, 30257, 57196, 60514, 69323, 121028, 138646, 277292, 5476517, 10953034, 21906068]

約数ペア:

[(1, 21906068), (2, 10953034), (4, 5476517), (79, 277292), (158, 138646), (181, 121028), (316, 69323), (362, 60514), (383, 57196), (724, 30257), (766, 28598), (1532, 14299)]