21881220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{364687}}^1$

素因数の和:364699

約数の個数: 24

約数和(自身を含む): 61267584

約数和(自身を除く): 39386364

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 364687, 729374, 1094061, 1458748, 1823435, 2188122, 3646870, 4376244, 5470305, 7293740, 10940610, 21881220]

約数ペア:

[(1, 21881220), (2, 10940610), (3, 7293740), (4, 5470305), (5, 4376244), (6, 3646870), (10, 2188122), (12, 1823435), (15, 1458748), (20, 1094061), (30, 729374), (60, 364687)]