21657864

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{487}}^1$

素因数の和:622

約数の個数: 64

約数和(自身を含む): 57974400

約数和(自身を除く): 36316536

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 109, 136, 204, 218, 327, 408, 436, 487, 654, 872, 974, 1308, 1461, 1853, 1948, 2616, 2922, 3706, 3896, 5559, 5844, 7412, 8279, 11118, 11688, 14824, 16558, 22236, 24837, 33116, 44472, 49674, 53083, 66232, 99348, 106166, 159249, 198696, 212332, 318498, 424664, 636996, 902411, 1273992, 1804822, 2707233, 3609644, 5414466, 7219288, 10828932, 21657864]

約数ペア:

[(1, 21657864), (2, 10828932), (3, 7219288), (4, 5414466), (6, 3609644), (8, 2707233), (12, 1804822), (17, 1273992), (24, 902411), (34, 636996), (51, 424664), (68, 318498), (102, 212332), (109, 198696), (136, 159249), (204, 106166), (218, 99348), (327, 66232), (408, 53083), (436, 49674), (487, 44472), (654, 33116), (872, 24837), (974, 22236), (1308, 16558), (1461, 14824), (1853, 11688), (1948, 11118), (2616, 8279), (2922, 7412), (3706, 5844), (3896, 5559)]