20997666

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{757}}^1$

素因数の和:855

約数の個数: 48

約数和(自身を含む): 48245184

約数和(自身を除く): 27247518

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 67, 69, 134, 138, 201, 207, 402, 414, 603, 757, 1206, 1514, 1541, 2271, 3082, 4542, 4623, 6813, 9246, 13626, 13869, 17411, 27738, 34822, 50719, 52233, 101438, 104466, 152157, 156699, 304314, 313398, 456471, 912942, 1166537, 2333074, 3499611, 6999222, 10498833, 20997666]

約数ペア:

[(1, 20997666), (2, 10498833), (3, 6999222), (6, 3499611), (9, 2333074), (18, 1166537), (23, 912942), (46, 456471), (67, 313398), (69, 304314), (134, 156699), (138, 152157), (201, 104466), (207, 101438), (402, 52233), (414, 50719), (603, 34822), (757, 27738), (1206, 17411), (1514, 13869), (1541, 13626), (2271, 9246), (3082, 6813), (4542, 4623)]