21130740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{359}}^1$

素因数の和:486

約数の個数: 96

約数和(自身を含む): 66528000

約数和(自身を除く): 45397260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 109, 135, 180, 218, 270, 327, 359, 436, 540, 545, 654, 718, 981, 1077, 1090, 1308, 1436, 1635, 1795, 1962, 2154, 2180, 2943, 3231, 3270, 3590, 3924, 4308, 4905, 5385, 5886, 6462, 6540, 7180, 9693, 9810, 10770, 11772, 12924, 14715, 16155, 19386, 19620, 21540, 29430, 32310, 38772, 39131, 48465, 58860, 64620, 78262, 96930, 117393, 156524, 193860, 195655, 234786, 352179, 391310, 469572, 586965, 704358, 782620, 1056537, 1173930, 1408716, 1760895, 2113074, 2347860, 3521790, 4226148, 5282685, 7043580, 10565370, 21130740]

約数ペア:

[(1, 21130740), (2, 10565370), (3, 7043580), (4, 5282685), (5, 4226148), (6, 3521790), (9, 2347860), (10, 2113074), (12, 1760895), (15, 1408716), (18, 1173930), (20, 1056537), (27, 782620), (30, 704358), (36, 586965), (45, 469572), (54, 391310), (60, 352179), (90, 234786), (108, 195655), (109, 193860), (135, 156524), (180, 117393), (218, 96930), (270, 78262), (327, 64620), (359, 58860), (436, 48465), (540, 39131), (545, 38772), (654, 32310), (718, 29430), (981, 21540), (1077, 19620), (1090, 19386), (1308, 16155), (1436, 14715), (1635, 12924), (1795, 11772), (1962, 10770), (2154, 9810), (2180, 9693), (2943, 7180), (3231, 6540), (3270, 6462), (3590, 5886), (3924, 5385), (4308, 4905)]