21130180588

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{2413223}}^1$

素因数の和:2413437

約数の個数: 24

約数和(自身を含む): 40542163200

約数和(自身を除く): 19411982612

約数列:

[1, 2, 4, 11, 22, 44, 199, 398, 796, 2189, 4378, 8756, 2413223, 4826446, 9652892, 26545453, 53090906, 106181812, 480231377, 960462754, 1920925508, 5282545147, 10565090294, 21130180588]

約数ペア:

[(1, 21130180588), (2, 10565090294), (4, 5282545147), (11, 1920925508), (22, 960462754), (44, 480231377), (199, 106181812), (398, 53090906), (796, 26545453), (2189, 9652892), (4378, 4826446), (8756, 2413223)]