20853318

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{1103}}^1$

素因数の和:1268

約数の個数: 32

約数和(自身を含む): 43877376

約数和(自身を除く): 23024058

約数列:

[1, 2, 3, 6, 23, 46, 69, 137, 138, 274, 411, 822, 1103, 2206, 3151, 3309, 6302, 6618, 9453, 18906, 25369, 50738, 76107, 151111, 152214, 302222, 453333, 906666, 3475553, 6951106, 10426659, 20853318]

約数ペア:

[(1, 20853318), (2, 10426659), (3, 6951106), (6, 3475553), (23, 906666), (46, 453333), (69, 302222), (137, 152214), (138, 151111), (274, 76107), (411, 50738), (822, 25369), (1103, 18906), (2206, 9453), (3151, 6618), (3309, 6302)]