21629860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3593}}^1$

素因数の和:3652

約数の個数: 48

約数和(自身を含む): 53133696

約数和(自身を除く): 31503836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 3593, 6020, 7186, 14372, 17965, 25151, 35930, 50302, 71860, 100604, 125755, 154499, 251510, 308998, 503020, 617996, 772495, 1081493, 1544990, 2162986, 3089980, 4325972, 5407465, 10814930, 21629860]

約数ペア:

[(1, 21629860), (2, 10814930), (4, 5407465), (5, 4325972), (7, 3089980), (10, 2162986), (14, 1544990), (20, 1081493), (28, 772495), (35, 617996), (43, 503020), (70, 308998), (86, 251510), (140, 154499), (172, 125755), (215, 100604), (301, 71860), (430, 50302), (602, 35930), (860, 25151), (1204, 17965), (1505, 14372), (3010, 7186), (3593, 6020)]