20421585

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{6577}}^1$

素因数の和:6614

約数の個数: 32

約数和(自身を含む): 37889280

約数和(自身を除く): 17467695

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 6577, 19731, 32885, 59193, 98655, 151271, 177579, 295965, 453813, 756355, 887895, 1361439, 2269065, 4084317, 6807195, 20421585]

約数ペア:

[(1, 20421585), (3, 6807195), (5, 4084317), (9, 2269065), (15, 1361439), (23, 887895), (27, 756355), (45, 453813), (69, 295965), (115, 177579), (135, 151271), (207, 98655), (345, 59193), (621, 32885), (1035, 19731), (3105, 6577)]