20402956

素因数分解:

$2^2\times 7^1\times {\mathrm{617}}^1\times {\mathrm{1181}}^1$

素因数の和:1809

約数の個数: 24

約数和(自身を含む): 40906656

約数和(自身を除く): 20503700

約数列:

[1, 2, 4, 7, 14, 28, 617, 1181, 1234, 2362, 2468, 4319, 4724, 8267, 8638, 16534, 17276, 33068, 728677, 1457354, 2914708, 5100739, 10201478, 20402956]

約数ペア:

[(1, 20402956), (2, 10201478), (4, 5100739), (7, 2914708), (14, 1457354), (28, 728677), (617, 33068), (1181, 17276), (1234, 16534), (2362, 8638), (2468, 8267), (4319, 4724)]