21487186

素因数分解:

$2^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{5099}}^1$

素因数の和:5158

約数の個数: 24

約数和(自身を含む): 38372400

約数和(自身を除く): 16885214

約数列:

[1, 2, 7, 14, 43, 49, 86, 98, 301, 602, 2107, 4214, 5099, 10198, 35693, 71386, 219257, 249851, 438514, 499702, 1534799, 3069598, 10743593, 21487186]

約数ペア:

[(1, 21487186), (2, 10743593), (7, 3069598), (14, 1534799), (43, 499702), (49, 438514), (86, 249851), (98, 219257), (301, 71386), (602, 35693), (2107, 10198), (4214, 5099)]