20999148

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1303}}^1$

素因数の和:1406

約数の個数: 48

約数和(自身を含む): 52577280

約数和(自身を除く): 31578132

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 79, 102, 158, 204, 237, 316, 474, 948, 1303, 1343, 2606, 2686, 3909, 4029, 5212, 5372, 7818, 8058, 15636, 16116, 22151, 44302, 66453, 88604, 102937, 132906, 205874, 265812, 308811, 411748, 617622, 1235244, 1749929, 3499858, 5249787, 6999716, 10499574, 20999148]

約数ペア:

[(1, 20999148), (2, 10499574), (3, 6999716), (4, 5249787), (6, 3499858), (12, 1749929), (17, 1235244), (34, 617622), (51, 411748), (68, 308811), (79, 265812), (102, 205874), (158, 132906), (204, 102937), (237, 88604), (316, 66453), (474, 44302), (948, 22151), (1303, 16116), (1343, 15636), (2606, 8058), (2686, 7818), (3909, 5372), (4029, 5212)]