21621986

素因数分解:

$2^1\times {\mathrm{37}}^2\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:278

約数の個数: 24

約数和(自身を含む): 34190100

約数和(自身を除く): 12568114

約数列:

[1, 2, 37, 53, 74, 106, 149, 298, 1369, 1961, 2738, 3922, 5513, 7897, 11026, 15794, 72557, 145114, 203981, 292189, 407962, 584378, 10810993, 21621986]

約数ペア:

[(1, 21621986), (2, 10810993), (37, 584378), (53, 407962), (74, 292189), (106, 203981), (149, 145114), (298, 72557), (1369, 15794), (1961, 11026), (2738, 7897), (3922, 5513)]