172680021

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{17749}}^1$

素因数の和:17825

約数の個数: 24

約数和(自身を含む): 265824000

約数和(自身を除く): 93143979

約数列:

[1, 3, 9, 23, 47, 69, 141, 207, 423, 1081, 3243, 9729, 17749, 53247, 159741, 408227, 834203, 1224681, 2502609, 3674043, 7507827, 19186669, 57560007, 172680021]

約数ペア:

[(1, 172680021), (3, 57560007), (9, 19186669), (23, 7507827), (47, 3674043), (69, 2502609), (141, 1224681), (207, 834203), (423, 408227), (1081, 159741), (3243, 53247), (9729, 17749)]