21944860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{156749}}^1$

素因数の和:156765

約数の個数: 24

約数和(自身を含む): 52668000

約数和(自身を除く): 30723140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 156749, 313498, 626996, 783745, 1097243, 1567490, 2194486, 3134980, 4388972, 5486215, 10972430, 21944860]

約数ペア:

[(1, 21944860), (2, 10972430), (4, 5486215), (5, 4388972), (7, 3134980), (10, 2194486), (14, 1567490), (20, 1097243), (28, 783745), (35, 626996), (70, 313498), (140, 156749)]