21380966

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{6779}}^1$

素因数の和:6883

約数の個数: 16

約数和(自身を含む): 34171200

約数和(自身を除く): 12790234

約数列:

[1, 2, 19, 38, 83, 166, 1577, 3154, 6779, 13558, 128801, 257602, 562657, 1125314, 10690483, 21380966]

約数ペア:

[(1, 21380966), (2, 10690483), (19, 1125314), (38, 562657), (83, 257602), (166, 128801), (1577, 13558), (3154, 6779)]