21626978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{6857}}^1$

素因数の和:6961

約数の個数: 16

約数和(自身を含む): 34564320

約数和(自身を除く): 12937342

約数列:

[1, 2, 19, 38, 83, 166, 1577, 3154, 6857, 13714, 130283, 260566, 569131, 1138262, 10813489, 21626978]

約数ペア:

[(1, 21626978), (2, 10813489), (19, 1138262), (38, 569131), (83, 260566), (166, 130283), (1577, 13714), (3154, 6857)]