21456315

素因数分解:

$3^2\times 5^1\times {\mathrm{467}}^1\times {\mathrm{1021}}^1$

素因数の和:1499

約数の個数: 24

約数和(自身を含む): 37307088

約数和(自身を除く): 15850773

約数列:

[1, 3, 5, 9, 15, 45, 467, 1021, 1401, 2335, 3063, 4203, 5105, 7005, 9189, 15315, 21015, 45945, 476807, 1430421, 2384035, 4291263, 7152105, 21456315]

約数ペア:

[(1, 21456315), (3, 7152105), (5, 4291263), (9, 2384035), (15, 1430421), (45, 476807), (467, 45945), (1021, 21015), (1401, 15315), (2335, 9189), (3063, 7005), (4203, 5105)]