21740970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{2579}}^1$

素因数の和:2870

約数の個数: 32

約数和(自身を含む): 52384320

約数和(自身を除く): 30643350

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 281, 562, 843, 1405, 1686, 2579, 2810, 4215, 5158, 7737, 8430, 12895, 15474, 25790, 38685, 77370, 724699, 1449398, 2174097, 3623495, 4348194, 7246990, 10870485, 21740970]

約数ペア:

[(1, 21740970), (2, 10870485), (3, 7246990), (5, 4348194), (6, 3623495), (10, 2174097), (15, 1449398), (30, 724699), (281, 77370), (562, 38685), (843, 25790), (1405, 15474), (1686, 12895), (2579, 8430), (2810, 7737), (4215, 5158)]