21771824

素因数分解:

$2^4\times {\mathrm{211}}^1\times {\mathrm{6449}}^1$

素因数の和:6668

約数の個数: 20

約数和(自身を含む): 42389400

約数和(自身を除く): 20617576

約数列:

[1, 2, 4, 8, 16, 211, 422, 844, 1688, 3376, 6449, 12898, 25796, 51592, 103184, 1360739, 2721478, 5442956, 10885912, 21771824]

約数ペア:

[(1, 21771824), (2, 10885912), (4, 5442956), (8, 2721478), (16, 1360739), (211, 103184), (422, 51592), (844, 25796), (1688, 12898), (3376, 6449)]