21255438

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{66841}}^1$

素因数の和:66899

約数の個数: 16

約数和(自身を含む): 43313616

約数和(自身を除く): 22058178

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 66841, 133682, 200523, 401046, 3542573, 7085146, 10627719, 21255438]

約数ペア:

[(1, 21255438), (2, 10627719), (3, 7085146), (6, 3542573), (53, 401046), (106, 200523), (159, 133682), (318, 66841)]