21063512

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{557}}^1$

素因数の和:755

約数の個数: 32

約数和(自身を含む): 41180400

約数和(自身を除く): 20116888

約数列:

[1, 2, 4, 8, 29, 58, 116, 163, 232, 326, 557, 652, 1114, 1304, 2228, 4456, 4727, 9454, 16153, 18908, 32306, 37816, 64612, 90791, 129224, 181582, 363164, 726328, 2632939, 5265878, 10531756, 21063512]

約数ペア:

[(1, 21063512), (2, 10531756), (4, 5265878), (8, 2632939), (29, 726328), (58, 363164), (116, 181582), (163, 129224), (232, 90791), (326, 64612), (557, 37816), (652, 32306), (1114, 18908), (1304, 16153), (2228, 9454), (4456, 4727)]