20521616

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{21739}}^1$

素因数の和:21806

約数の個数: 20

約数和(自身を含む): 40436400

約数和(自身を除く): 19914784

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 21739, 43478, 86956, 173912, 347824, 1282601, 2565202, 5130404, 10260808, 20521616]

約数ペア:

[(1, 20521616), (2, 10260808), (4, 5130404), (8, 2565202), (16, 1282601), (59, 347824), (118, 173912), (236, 86956), (472, 43478), (944, 21739)]