21019930

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1549}}^1$

素因数の和:1638

約数の個数: 32

約数和(自身を含む): 40176000

約数和(自身を除く): 19156070

約数列:

[1, 2, 5, 10, 23, 46, 59, 115, 118, 230, 295, 590, 1357, 1549, 2714, 3098, 6785, 7745, 13570, 15490, 35627, 71254, 91391, 178135, 182782, 356270, 456955, 913910, 2101993, 4203986, 10509965, 21019930]

約数ペア:

[(1, 21019930), (2, 10509965), (5, 4203986), (10, 2101993), (23, 913910), (46, 456955), (59, 356270), (115, 182782), (118, 178135), (230, 91391), (295, 71254), (590, 35627), (1357, 15490), (1549, 13570), (2714, 7745), (3098, 6785)]