21537028

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{367}}^1\times {\mathrm{863}}^1$

素因数の和:1251

約数の個数: 24

約数和(自身を含む): 40061952

約数和(自身を除く): 18524924

約数列:

[1, 2, 4, 17, 34, 68, 367, 734, 863, 1468, 1726, 3452, 6239, 12478, 14671, 24956, 29342, 58684, 316721, 633442, 1266884, 5384257, 10768514, 21537028]

約数ペア:

[(1, 21537028), (2, 10768514), (4, 5384257), (17, 1266884), (34, 633442), (68, 316721), (367, 58684), (734, 29342), (863, 24956), (1468, 14671), (1726, 12478), (3452, 6239)]