20842756

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{739}}^1$

素因数の和:1395

約数の個数: 24

約数和(自身を含む): 39906720

約数和(自身を除く): 19063964

約数列:

[1, 2, 4, 11, 22, 44, 641, 739, 1282, 1478, 2564, 2956, 7051, 8129, 14102, 16258, 28204, 32516, 473699, 947398, 1894796, 5210689, 10421378, 20842756]

約数ペア:

[(1, 20842756), (2, 10421378), (4, 5210689), (11, 1894796), (22, 947398), (44, 473699), (641, 32516), (739, 28204), (1282, 16258), (1478, 14102), (2564, 8129), (2956, 7051)]