21909960

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{20287}}^1$

素因数の和:20307

約数の個数: 64

約数和(自身を含む): 73036800

約数和(自身を除く): 51126840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 20287, 40574, 60861, 81148, 101435, 121722, 162296, 182583, 202870, 243444, 304305, 365166, 405740, 486888, 547749, 608610, 730332, 811480, 912915, 1095498, 1217220, 1460664, 1825830, 2190996, 2434440, 2738745, 3651660, 4381992, 5477490, 7303320, 10954980, 21909960]

約数ペア:

[(1, 21909960), (2, 10954980), (3, 7303320), (4, 5477490), (5, 4381992), (6, 3651660), (8, 2738745), (9, 2434440), (10, 2190996), (12, 1825830), (15, 1460664), (18, 1217220), (20, 1095498), (24, 912915), (27, 811480), (30, 730332), (36, 608610), (40, 547749), (45, 486888), (54, 405740), (60, 365166), (72, 304305), (90, 243444), (108, 202870), (120, 182583), (135, 162296), (180, 121722), (216, 101435), (270, 81148), (360, 60861), (540, 40574), (1080, 20287)]