19664253

素因数分解:

$3^2\times 7^1\times {\mathrm{457}}^1\times {\mathrm{683}}^1$

素因数の和:1153

約数の個数: 24

約数和(自身を含む): 32580288

約数和(自身を除く): 12916035

約数列:

[1, 3, 7, 9, 21, 63, 457, 683, 1371, 2049, 3199, 4113, 4781, 6147, 9597, 14343, 28791, 43029, 312131, 936393, 2184917, 2809179, 6554751, 19664253]

約数ペア:

[(1, 19664253), (3, 6554751), (7, 2809179), (9, 2184917), (21, 936393), (63, 312131), (457, 43029), (683, 28791), (1371, 14343), (2049, 9597), (3199, 6147), (4113, 4781)]