21695156

素因数分解:

$2^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{6101}}^1$

素因数の和:6239

約数の個数: 24

約数和(自身を含む): 43739136

約数和(自身を除く): 22043980

約数列:

[1, 2, 4, 7, 14, 28, 127, 254, 508, 889, 1778, 3556, 6101, 12202, 24404, 42707, 85414, 170828, 774827, 1549654, 3099308, 5423789, 10847578, 21695156]

約数ペア:

[(1, 21695156), (2, 10847578), (4, 5423789), (7, 3099308), (14, 1549654), (28, 774827), (127, 170828), (254, 85414), (508, 42707), (889, 24404), (1778, 12202), (3556, 6101)]