21239962

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{1327}}^1$

素因数の和:1533

約数の個数: 16

約数和(自身を含む): 32700672

約数和(自身を除く): 11460710

約数列:

[1, 2, 53, 106, 151, 302, 1327, 2654, 8003, 16006, 70331, 140662, 200377, 400754, 10619981, 21239962]

約数ペア:

[(1, 21239962), (2, 10619981), (53, 400754), (106, 200377), (151, 140662), (302, 70331), (1327, 16006), (2654, 8003)]