20371551

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{2357}}^1$

素因数の和:2470

約数の個数: 16

約数和(自身を含む): 28220544

約数和(自身を除く): 7848993

約数列:

[1, 3, 43, 67, 129, 201, 2357, 2881, 7071, 8643, 101351, 157919, 304053, 473757, 6790517, 20371551]

約数ペア:

[(1, 20371551), (3, 6790517), (43, 473757), (67, 304053), (129, 157919), (201, 101351), (2357, 8643), (2881, 7071)]