21500612

素因数分解:

$2^2\times 7^3\times {\mathrm{15671}}^1$

素因数の和:15696

約数の個数: 24

約数和(自身を含む): 43881600

約数和(自身を除く): 22380988

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15671, 31342, 62684, 109697, 219394, 438788, 767879, 1535758, 3071516, 5375153, 10750306, 21500612]

約数ペア:

[(1, 21500612), (2, 10750306), (4, 5375153), (7, 3071516), (14, 1535758), (28, 767879), (49, 438788), (98, 219394), (196, 109697), (343, 62684), (686, 31342), (1372, 15671)]