21335940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39511}}^1$

素因数の和:39529

約数の個数: 48

約数和(自身を含む): 66380160

約数和(自身を除く): 45044220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39511, 79022, 118533, 158044, 197555, 237066, 355599, 395110, 474132, 592665, 711198, 790220, 1066797, 1185330, 1422396, 1777995, 2133594, 2370660, 3555990, 4267188, 5333985, 7111980, 10667970, 21335940]

約数ペア:

[(1, 21335940), (2, 10667970), (3, 7111980), (4, 5333985), (5, 4267188), (6, 3555990), (9, 2370660), (10, 2133594), (12, 1777995), (15, 1422396), (18, 1185330), (20, 1066797), (27, 790220), (30, 711198), (36, 592665), (45, 474132), (54, 395110), (60, 355599), (90, 237066), (108, 197555), (135, 158044), (180, 118533), (270, 79022), (540, 39511)]