21815116

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{7001}}^1$

素因数の和:7065

約数の個数: 24

約数和(自身を含む): 41171760

約数和(自身を除く): 19356644

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 7001, 14002, 28004, 133019, 266038, 287041, 532076, 574082, 1148164, 5453779, 10907558, 21815116]

約数ペア:

[(1, 21815116), (2, 10907558), (4, 5453779), (19, 1148164), (38, 574082), (41, 532076), (76, 287041), (82, 266038), (164, 133019), (779, 28004), (1558, 14002), (3116, 7001)]