19959992

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{683}}^1$

素因数の和:983

約数の個数: 32

約数和(自身を含む): 40506480

約数和(自身を除く): 20546488

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 281, 562, 683, 1124, 1366, 2248, 2732, 3653, 5464, 7306, 8879, 14612, 17758, 29224, 35516, 71032, 191923, 383846, 767692, 1535384, 2494999, 4989998, 9979996, 19959992]

約数ペア:

[(1, 19959992), (2, 9979996), (4, 4989998), (8, 2494999), (13, 1535384), (26, 767692), (52, 383846), (104, 191923), (281, 71032), (562, 35516), (683, 29224), (1124, 17758), (1366, 14612), (2248, 8879), (2732, 7306), (3653, 5464)]