21346731

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{5743}}^1$

素因数の和:5815

約数の個数: 24

約数和(自身を含む): 35842560

約数和(自身を除く): 14495829

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 5743, 17229, 40201, 51687, 120603, 338837, 361809, 1016511, 2371859, 3049533, 7115577, 21346731]

約数ペア:

[(1, 21346731), (3, 7115577), (7, 3049533), (9, 2371859), (21, 1016511), (59, 361809), (63, 338837), (177, 120603), (413, 51687), (531, 40201), (1239, 17229), (3717, 5743)]