21780272

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{36791}}^1$

素因数の和:36836

約数の個数: 20

約数和(自身を含む): 43340976

約数和(自身を除く): 21560704

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 36791, 73582, 147164, 294328, 588656, 1361267, 2722534, 5445068, 10890136, 21780272]

約数ペア:

[(1, 21780272), (2, 10890136), (4, 5445068), (8, 2722534), (16, 1361267), (37, 588656), (74, 294328), (148, 147164), (296, 73582), (592, 36791)]