20556816

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{317}}^1$

素因数の和:528

約数の個数: 80

約数和(自身を含む): 61198464

約数和(自身を除く): 40641648

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 193, 317, 336, 386, 579, 634, 772, 951, 1158, 1268, 1351, 1544, 1902, 2219, 2316, 2536, 2702, 3088, 3804, 4053, 4438, 4632, 5072, 5404, 6657, 7608, 8106, 8876, 9264, 10808, 13314, 15216, 16212, 17752, 21616, 26628, 32424, 35504, 53256, 61181, 64848, 106512, 122362, 183543, 244724, 367086, 428267, 489448, 734172, 856534, 978896, 1284801, 1468344, 1713068, 2569602, 2936688, 3426136, 5139204, 6852272, 10278408, 20556816]

約数ペア:

[(1, 20556816), (2, 10278408), (3, 6852272), (4, 5139204), (6, 3426136), (7, 2936688), (8, 2569602), (12, 1713068), (14, 1468344), (16, 1284801), (21, 978896), (24, 856534), (28, 734172), (42, 489448), (48, 428267), (56, 367086), (84, 244724), (112, 183543), (168, 122362), (193, 106512), (317, 64848), (336, 61181), (386, 53256), (579, 35504), (634, 32424), (772, 26628), (951, 21616), (1158, 17752), (1268, 16212), (1351, 15216), (1544, 13314), (1902, 10808), (2219, 9264), (2316, 8876), (2536, 8106), (2702, 7608), (3088, 6657), (3804, 5404), (4053, 5072), (4438, 4632)]