19725736

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{647}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 38413440

約数和(自身を除く): 18687704

約数列:

[1, 2, 4, 8, 37, 74, 103, 148, 206, 296, 412, 647, 824, 1294, 2588, 3811, 5176, 7622, 15244, 23939, 30488, 47878, 66641, 95756, 133282, 191512, 266564, 533128, 2465717, 4931434, 9862868, 19725736]

約数ペア:

[(1, 19725736), (2, 9862868), (4, 4931434), (8, 2465717), (37, 533128), (74, 266564), (103, 191512), (148, 133282), (206, 95756), (296, 66641), (412, 47878), (647, 30488), (824, 23939), (1294, 15244), (2588, 7622), (3811, 5176)]