21465465

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2297}}^1$

素因数の和:2401

約数の個数: 32

約数和(自身を含む): 39709440

約数和(自身を除く): 18243975

約数列:

[1, 3, 5, 7, 15, 21, 35, 89, 105, 267, 445, 623, 1335, 1869, 2297, 3115, 6891, 9345, 11485, 16079, 34455, 48237, 80395, 204433, 241185, 613299, 1022165, 1431031, 3066495, 4293093, 7155155, 21465465]

約数ペア:

[(1, 21465465), (3, 7155155), (5, 4293093), (7, 3066495), (15, 1431031), (21, 1022165), (35, 613299), (89, 241185), (105, 204433), (267, 80395), (445, 48237), (623, 34455), (1335, 16079), (1869, 11485), (2297, 9345), (3115, 6891)]