20154212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20399}}^1$

素因数の和:20435

約数の個数: 24

約数和(自身を含む): 39984000

約数和(自身を除く): 19829788

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 20399, 40798, 81596, 265187, 387581, 530374, 775162, 1060748, 1550324, 5038553, 10077106, 20154212]

約数ペア:

[(1, 20154212), (2, 10077106), (4, 5038553), (13, 1550324), (19, 1060748), (26, 775162), (38, 530374), (52, 387581), (76, 265187), (247, 81596), (494, 40798), (988, 20399)]