20007963

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{521}}^1$

素因数の和:795

約数の個数: 24

約数和(自身を含む): 30781296

約数和(自身を除く): 10773333

約数列:

[1, 3, 9, 17, 51, 153, 251, 521, 753, 1563, 2259, 4267, 4689, 8857, 12801, 26571, 38403, 79713, 130771, 392313, 1176939, 2223107, 6669321, 20007963]

約数ペア:

[(1, 20007963), (3, 6669321), (9, 2223107), (17, 1176939), (51, 392313), (153, 130771), (251, 79713), (521, 38403), (753, 26571), (1563, 12801), (2259, 8857), (4267, 4689)]