21299607

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2239}}^1$

素因数の和:2403

約数の個数: 24

約数和(自身を含む): 35409920

約数和(自身を除く): 14110313

約数列:

[1, 3, 7, 9, 21, 63, 151, 453, 1057, 1359, 2239, 3171, 6717, 9513, 15673, 20151, 47019, 141057, 338089, 1014267, 2366623, 3042801, 7099869, 21299607]

約数ペア:

[(1, 21299607), (3, 7099869), (7, 3042801), (9, 2366623), (21, 1014267), (63, 338089), (151, 141057), (453, 47019), (1057, 20151), (1359, 15673), (2239, 9513), (3171, 6717)]