21791352

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{419}}^1$

素因数の和:636

約数の個数: 64

約数和(自身を含む): 59875200

約数和(自身を除く): 38083848

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 197, 264, 394, 419, 591, 788, 838, 1182, 1257, 1576, 1676, 2167, 2364, 2514, 3352, 4334, 4609, 4728, 5028, 6501, 8668, 9218, 10056, 13002, 13827, 17336, 18436, 26004, 27654, 36872, 52008, 55308, 82543, 110616, 165086, 247629, 330172, 495258, 660344, 907973, 990516, 1815946, 1981032, 2723919, 3631892, 5447838, 7263784, 10895676, 21791352]

約数ペア:

[(1, 21791352), (2, 10895676), (3, 7263784), (4, 5447838), (6, 3631892), (8, 2723919), (11, 1981032), (12, 1815946), (22, 990516), (24, 907973), (33, 660344), (44, 495258), (66, 330172), (88, 247629), (132, 165086), (197, 110616), (264, 82543), (394, 55308), (419, 52008), (591, 36872), (788, 27654), (838, 26004), (1182, 18436), (1257, 17336), (1576, 13827), (1676, 13002), (2167, 10056), (2364, 9218), (2514, 8668), (3352, 6501), (4334, 5028), (4609, 4728)]