21413763

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2251}}^1$

素因数の和:2415

約数の個数: 24

約数和(自身を含む): 35599616

約数和(自身を除く): 14185853

約数列:

[1, 3, 7, 9, 21, 63, 151, 453, 1057, 1359, 2251, 3171, 6753, 9513, 15757, 20259, 47271, 141813, 339901, 1019703, 2379307, 3059109, 7137921, 21413763]

約数ペア:

[(1, 21413763), (3, 7137921), (7, 3059109), (9, 2379307), (21, 1019703), (63, 339901), (151, 141813), (453, 47271), (1057, 20259), (1359, 15757), (2251, 9513), (3171, 6753)]