21808136

素因数分解:

$2^3\times 7^2\times {\mathrm{55633}}^1$

素因数の和:55653

約数の個数: 24

約数和(自身を含む): 47567070

約数和(自身を除く): 25758934

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 55633, 111266, 222532, 389431, 445064, 778862, 1557724, 2726017, 3115448, 5452034, 10904068, 21808136]

約数ペア:

[(1, 21808136), (2, 10904068), (4, 5452034), (7, 3115448), (8, 2726017), (14, 1557724), (28, 778862), (49, 445064), (56, 389431), (98, 222532), (196, 111266), (392, 55633)]