21355930.000000000

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{319201}}^1$

素因数の和:319219

約数の個数: 48

約数和(自身を含む): 482633424

約数和(自身を除く): 329416944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 319201, 638402, 957603, 1276804, 1596005, 1915206, 2553608, 3192010, 3830412, 4788015, 5107216, 6384020, 7660824, 9576030, 10214432, 12768040, 15321648, 19152060, 25536080, 30643296, 38304120, 51072160, 76608240, 153216480]

約数ペア:

[(1, 153216480), (2, 76608240), (3, 51072160), (4, 38304120), (5, 30643296), (6, 25536080), (8, 19152060), (10, 15321648), (12, 12768040), (15, 10214432), (16, 9576030), (20, 7660824), (24, 6384020), (30, 5107216), (32, 4788015), (40, 3830412), (48, 3192010), (60, 2553608), (80, 1915206), (96, 1596005), (120, 1276804), (160, 957603), (240, 638402), (480, 319201)]