21817725

素因数分解:

$3^1\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2999}}^1$

素因数の和:3109

約数の個数: 24

約数和(自身を含む): 36456000

約数和(自身を除く): 14638275

約数列:

[1, 3, 5, 15, 25, 75, 97, 291, 485, 1455, 2425, 2999, 7275, 8997, 14995, 44985, 74975, 224925, 290903, 872709, 1454515, 4363545, 7272575, 21817725]

約数ペア:

[(1, 21817725), (3, 7272575), (5, 4363545), (15, 1454515), (25, 872709), (75, 290903), (97, 224925), (291, 74975), (485, 44985), (1455, 14995), (2425, 8997), (2999, 7275)]