20108478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3631}}^1$

素因数の和:3720

約数の個数: 32

約数和(自身を含む): 43932672

約数和(自身を除く): 23824194

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 426, 923, 1846, 2769, 3631, 5538, 7262, 10893, 21786, 47203, 94406, 141609, 257801, 283218, 515602, 773403, 1546806, 3351413, 6702826, 10054239, 20108478]

約数ペア:

[(1, 20108478), (2, 10054239), (3, 6702826), (6, 3351413), (13, 1546806), (26, 773403), (39, 515602), (71, 283218), (78, 257801), (142, 141609), (213, 94406), (426, 47203), (923, 21786), (1846, 10893), (2769, 7262), (3631, 5538)]