20783784

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{641}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 59783040

約数和(自身を除く): 38999256

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 193, 386, 579, 641, 772, 1158, 1282, 1351, 1544, 1923, 2316, 2564, 2702, 3846, 4053, 4487, 4632, 5128, 5404, 7692, 8106, 8974, 10808, 13461, 15384, 16212, 17948, 26922, 32424, 35896, 53844, 107688, 123713, 247426, 371139, 494852, 742278, 865991, 989704, 1484556, 1731982, 2597973, 2969112, 3463964, 5195946, 6927928, 10391892, 20783784]

約数ペア:

[(1, 20783784), (2, 10391892), (3, 6927928), (4, 5195946), (6, 3463964), (7, 2969112), (8, 2597973), (12, 1731982), (14, 1484556), (21, 989704), (24, 865991), (28, 742278), (42, 494852), (56, 371139), (84, 247426), (168, 123713), (193, 107688), (386, 53844), (579, 35896), (641, 32424), (772, 26922), (1158, 17948), (1282, 16212), (1351, 15384), (1544, 13461), (1923, 10808), (2316, 8974), (2564, 8106), (2702, 7692), (3846, 5404), (4053, 5128), (4487, 4632)]