20679256

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{198839}}^1$

素因数の和:198858

約数の個数: 16

約数和(自身を含む): 41756400

約数和(自身を除く): 21077144

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 198839, 397678, 795356, 1590712, 2584907, 5169814, 10339628, 20679256]

約数ペア:

[(1, 20679256), (2, 10339628), (4, 5169814), (8, 2584907), (13, 1590712), (26, 795356), (52, 397678), (104, 198839)]