20384931

素因数分解:

$3^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{1373}}^1$

素因数の和:1491

約数の個数: 24

約数和(自身を含む): 31953744

約数和(自身を除く): 11568813

約数列:

[1, 3, 7, 21, 49, 101, 147, 303, 707, 1373, 2121, 4119, 4949, 9611, 14847, 28833, 67277, 138673, 201831, 416019, 970711, 2912133, 6794977, 20384931]

約数ペア:

[(1, 20384931), (3, 6794977), (7, 2912133), (21, 970711), (49, 416019), (101, 201831), (147, 138673), (303, 67277), (707, 28833), (1373, 14847), (2121, 9611), (4119, 4949)]