21861224

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1543}}^1$

素因数の和:1590

約数の個数: 64

約数和(自身を含む): 53360640

約数和(自身を除く): 31499416

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 23, 28, 44, 46, 56, 77, 88, 92, 154, 161, 184, 253, 308, 322, 506, 616, 644, 1012, 1288, 1543, 1771, 2024, 3086, 3542, 6172, 7084, 10801, 12344, 14168, 16973, 21602, 33946, 35489, 43204, 67892, 70978, 86408, 118811, 135784, 141956, 237622, 248423, 283912, 390379, 475244, 496846, 780758, 950488, 993692, 1561516, 1987384, 2732653, 3123032, 5465306, 10930612, 21861224]

約数ペア:

[(1, 21861224), (2, 10930612), (4, 5465306), (7, 3123032), (8, 2732653), (11, 1987384), (14, 1561516), (22, 993692), (23, 950488), (28, 780758), (44, 496846), (46, 475244), (56, 390379), (77, 283912), (88, 248423), (92, 237622), (154, 141956), (161, 135784), (184, 118811), (253, 86408), (308, 70978), (322, 67892), (506, 43204), (616, 35489), (644, 33946), (1012, 21602), (1288, 16973), (1543, 14168), (1771, 12344), (2024, 10801), (3086, 7084), (3542, 6172)]