21299590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2777}}^1$

素因数の和:2856

約数の個数: 32

約数和(自身を含む): 42003360

約数和(自身を除く): 20703770

約数列:

[1, 2, 5, 10, 13, 26, 59, 65, 118, 130, 295, 590, 767, 1534, 2777, 3835, 5554, 7670, 13885, 27770, 36101, 72202, 163843, 180505, 327686, 361010, 819215, 1638430, 2129959, 4259918, 10649795, 21299590]

約数ペア:

[(1, 21299590), (2, 10649795), (5, 4259918), (10, 2129959), (13, 1638430), (26, 819215), (59, 361010), (65, 327686), (118, 180505), (130, 163843), (295, 72202), (590, 36101), (767, 27770), (1534, 13885), (2777, 7670), (3835, 5554)]