21200910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6997}}^1$

素因数の和:7108

約数の個数: 32

約数和(自身を含む): 51393312

約数和(自身を除く): 30192402

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 101, 202, 303, 505, 606, 1010, 1515, 3030, 6997, 13994, 20991, 34985, 41982, 69970, 104955, 209910, 706697, 1413394, 2120091, 3533485, 4240182, 7066970, 10600455, 21200910]

約数ペア:

[(1, 21200910), (2, 10600455), (3, 7066970), (5, 4240182), (6, 3533485), (10, 2120091), (15, 1413394), (30, 706697), (101, 209910), (202, 104955), (303, 69970), (505, 41982), (606, 34985), (1010, 20991), (1515, 13994), (3030, 6997)]