21051180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1093}}^1$

素因数の和:1215

約数の個数: 72

約数和(自身を含む): 64510992

約数和(自身を除く): 43459812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 107, 180, 214, 321, 428, 535, 642, 963, 1070, 1093, 1284, 1605, 1926, 2140, 2186, 3210, 3279, 3852, 4372, 4815, 5465, 6420, 6558, 9630, 9837, 10930, 13116, 16395, 19260, 19674, 21860, 32790, 39348, 49185, 65580, 98370, 116951, 196740, 233902, 350853, 467804, 584755, 701706, 1052559, 1169510, 1403412, 1754265, 2105118, 2339020, 3508530, 4210236, 5262795, 7017060, 10525590, 21051180]

約数ペア:

[(1, 21051180), (2, 10525590), (3, 7017060), (4, 5262795), (5, 4210236), (6, 3508530), (9, 2339020), (10, 2105118), (12, 1754265), (15, 1403412), (18, 1169510), (20, 1052559), (30, 701706), (36, 584755), (45, 467804), (60, 350853), (90, 233902), (107, 196740), (180, 116951), (214, 98370), (321, 65580), (428, 49185), (535, 39348), (642, 32790), (963, 21860), (1070, 19674), (1093, 19260), (1284, 16395), (1605, 13116), (1926, 10930), (2140, 9837), (2186, 9630), (3210, 6558), (3279, 6420), (3852, 5465), (4372, 4815)]