20997028

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{1733}}^1$

素因数の和:1983

約数の個数: 24

約数和(自身を含む): 39764088

約数和(自身を除く): 18767060

約数列:

[1, 2, 4, 13, 26, 52, 233, 466, 932, 1733, 3029, 3466, 6058, 6932, 12116, 22529, 45058, 90116, 403789, 807578, 1615156, 5249257, 10498514, 20997028]

約数ペア:

[(1, 20997028), (2, 10498514), (4, 5249257), (13, 1615156), (26, 807578), (52, 403789), (233, 90116), (466, 45058), (932, 22529), (1733, 12116), (3029, 6932), (3466, 6058)]