20217522

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 46932480

約数和(自身を除く): 26714958

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 79, 102, 158, 193, 221, 237, 386, 442, 474, 579, 663, 1027, 1158, 1326, 1343, 2054, 2509, 2686, 3081, 3281, 4029, 5018, 6162, 6562, 7527, 8058, 9843, 15054, 15247, 17459, 19686, 30494, 34918, 42653, 45741, 52377, 85306, 91482, 104754, 127959, 198211, 255918, 259199, 396422, 518398, 594633, 777597, 1189266, 1555194, 3369587, 6739174, 10108761, 20217522]

約数ペア:

[(1, 20217522), (2, 10108761), (3, 6739174), (6, 3369587), (13, 1555194), (17, 1189266), (26, 777597), (34, 594633), (39, 518398), (51, 396422), (78, 259199), (79, 255918), (102, 198211), (158, 127959), (193, 104754), (221, 91482), (237, 85306), (386, 52377), (442, 45741), (474, 42653), (579, 34918), (663, 30494), (1027, 19686), (1158, 17459), (1326, 15247), (1343, 15054), (2054, 9843), (2509, 8058), (2686, 7527), (3081, 6562), (3281, 6162), (4029, 5018)]