20313172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{907}}^1$

素因数の和:1431

約数の個数: 24

約数和(自身を含む): 38898720

約数和(自身を除く): 18585548

約数列:

[1, 2, 4, 11, 22, 44, 509, 907, 1018, 1814, 2036, 3628, 5599, 9977, 11198, 19954, 22396, 39908, 461663, 923326, 1846652, 5078293, 10156586, 20313172]

約数ペア:

[(1, 20313172), (2, 10156586), (4, 5078293), (11, 1846652), (22, 923326), (44, 461663), (509, 39908), (907, 22396), (1018, 19954), (1814, 11198), (2036, 9977), (3628, 5599)]