21231898

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^2$

素因数の和:258

約数の個数: 24

約数和(自身を含む): 34139808

約数和(自身を除く): 12907910

約数列:

[1, 2, 23, 46, 67, 83, 134, 166, 1541, 1909, 3082, 3818, 5561, 6889, 11122, 13778, 127903, 158447, 255806, 316894, 461563, 923126, 10615949, 21231898]

約数ペア:

[(1, 21231898), (2, 10615949), (23, 923126), (46, 461563), (67, 316894), (83, 255806), (134, 158447), (166, 127903), (1541, 13778), (1909, 11122), (3082, 6889), (3818, 5561)]