19545986

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{1223}}^1$

素因数の和:1417

約数の個数: 16

約数和(自身を含む): 30051648

約数和(自身を除く): 10505662

約数列:

[1, 2, 61, 122, 131, 262, 1223, 2446, 7991, 15982, 74603, 149206, 160213, 320426, 9772993, 19545986]

約数ペア:

[(1, 19545986), (2, 9772993), (61, 320426), (122, 160213), (131, 149206), (262, 74603), (1223, 15982), (2446, 7991)]