20496747

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{503}}^1$

素因数の和:587

約数の個数: 24

約数和(自身を含む): 29707776

約数和(自身を除く): 9211029

約数列:

[1, 3, 17, 47, 51, 141, 289, 503, 799, 867, 1509, 2397, 8551, 13583, 23641, 25653, 40749, 70923, 145367, 401897, 436101, 1205691, 6832249, 20496747]

約数ペア:

[(1, 20496747), (3, 6832249), (17, 1205691), (47, 436101), (51, 401897), (141, 145367), (289, 70923), (503, 40749), (799, 25653), (867, 23641), (1509, 13583), (2397, 8551)]