19821872

素因数分解:

$2^4\times 7^2\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:346

約数の個数: 60

約数和(自身を含む): 45249336

約数和(自身を除く): 25427464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 131, 193, 196, 262, 386, 392, 524, 772, 784, 917, 1048, 1351, 1544, 1834, 2096, 2702, 3088, 3668, 5404, 6419, 7336, 9457, 10808, 12838, 14672, 18914, 21616, 25283, 25676, 37828, 50566, 51352, 75656, 101132, 102704, 151312, 176981, 202264, 353962, 404528, 707924, 1238867, 1415848, 2477734, 2831696, 4955468, 9910936, 19821872]

約数ペア:

[(1, 19821872), (2, 9910936), (4, 4955468), (7, 2831696), (8, 2477734), (14, 1415848), (16, 1238867), (28, 707924), (49, 404528), (56, 353962), (98, 202264), (112, 176981), (131, 151312), (193, 102704), (196, 101132), (262, 75656), (386, 51352), (392, 50566), (524, 37828), (772, 25676), (784, 25283), (917, 21616), (1048, 18914), (1351, 14672), (1544, 12838), (1834, 10808), (2096, 9457), (2702, 7336), (3088, 6419), (3668, 5404)]