21068984

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 23254216

約数列:

[1, 2, 4, 8, 17, 34, 37, 53, 68, 74, 79, 106, 136, 148, 158, 212, 296, 316, 424, 629, 632, 901, 1258, 1343, 1802, 1961, 2516, 2686, 2923, 3604, 3922, 4187, 5032, 5372, 5846, 7208, 7844, 8374, 10744, 11692, 15688, 16748, 23384, 33337, 33496, 49691, 66674, 71179, 99382, 133348, 142358, 154919, 198764, 266696, 284716, 309838, 397528, 569432, 619676, 1239352, 2633623, 5267246, 10534492, 21068984]

約数ペア:

[(1, 21068984), (2, 10534492), (4, 5267246), (8, 2633623), (17, 1239352), (34, 619676), (37, 569432), (53, 397528), (68, 309838), (74, 284716), (79, 266696), (106, 198764), (136, 154919), (148, 142358), (158, 133348), (212, 99382), (296, 71179), (316, 66674), (424, 49691), (629, 33496), (632, 33337), (901, 23384), (1258, 16748), (1343, 15688), (1802, 11692), (1961, 10744), (2516, 8374), (2686, 7844), (2923, 7208), (3604, 5846), (3922, 5372), (4187, 5032)]