21274320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88643}}^1$

素因数の和:88659

約数の個数: 40

約数和(自身を含む): 65951136

約数和(自身を除く): 44676816

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88643, 177286, 265929, 354572, 443215, 531858, 709144, 886430, 1063716, 1329645, 1418288, 1772860, 2127432, 2659290, 3545720, 4254864, 5318580, 7091440, 10637160, 21274320]

約数ペア:

[(1, 21274320), (2, 10637160), (3, 7091440), (4, 5318580), (5, 4254864), (6, 3545720), (8, 2659290), (10, 2127432), (12, 1772860), (15, 1418288), (16, 1329645), (20, 1063716), (24, 886430), (30, 709144), (40, 531858), (48, 443215), (60, 354572), (80, 265929), (120, 177286), (240, 88643)]