20972884

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{1693}}^1$

素因数の和:1879

約数の個数: 24

約数和(自身を含む): 38894240

約数和(自身を除く): 17921356

約数列:

[1, 2, 4, 19, 38, 76, 163, 326, 652, 1693, 3097, 3386, 6194, 6772, 12388, 32167, 64334, 128668, 275959, 551918, 1103836, 5243221, 10486442, 20972884]

約数ペア:

[(1, 20972884), (2, 10486442), (4, 5243221), (19, 1103836), (38, 551918), (76, 275959), (163, 128668), (326, 64334), (652, 32167), (1693, 12388), (3097, 6772), (3386, 6194)]