21990874

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{5659}}^1$

素因数の和:5757

約数の個数: 16

約数和(自身を含む): 34639200

約数和(自身を除く): 12648326

約数列:

[1, 2, 29, 58, 67, 134, 1943, 3886, 5659, 11318, 164111, 328222, 379153, 758306, 10995437, 21990874]

約数ペア:

[(1, 21990874), (2, 10995437), (29, 758306), (58, 379153), (67, 328222), (134, 164111), (1943, 11318), (3886, 5659)]