21891180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{364853}}^1$

素因数の和:364865

約数の個数: 24

約数和(自身を含む): 61295472

約数和(自身を除く): 39404292

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 364853, 729706, 1094559, 1459412, 1824265, 2189118, 3648530, 4378236, 5472795, 7297060, 10945590, 21891180]

約数ペア:

[(1, 21891180), (2, 10945590), (3, 7297060), (4, 5472795), (5, 4378236), (6, 3648530), (10, 2189118), (12, 1824265), (15, 1459412), (20, 1094559), (30, 729706), (60, 364853)]