20898848

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{937}}^1$

素因数の和:1005

約数の個数: 48

約数和(自身を含む): 44675064

約数和(自身を除く): 23776216

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 41, 68, 82, 136, 164, 272, 328, 544, 656, 697, 937, 1312, 1394, 1874, 2788, 3748, 5576, 7496, 11152, 14992, 15929, 22304, 29984, 31858, 38417, 63716, 76834, 127432, 153668, 254864, 307336, 509728, 614672, 653089, 1229344, 1306178, 2612356, 5224712, 10449424, 20898848]

約数ペア:

[(1, 20898848), (2, 10449424), (4, 5224712), (8, 2612356), (16, 1306178), (17, 1229344), (32, 653089), (34, 614672), (41, 509728), (68, 307336), (82, 254864), (136, 153668), (164, 127432), (272, 76834), (328, 63716), (544, 38417), (656, 31858), (697, 29984), (937, 22304), (1312, 15929), (1394, 14992), (1874, 11152), (2788, 7496), (3748, 5576)]