21001736

素因数分解:

$2^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2953}}^1$

素因数の和:3093

約数の個数: 32

約数和(自身を含む): 45373440

約数和(自身を除く): 24371704

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 127, 254, 508, 889, 1016, 1778, 2953, 3556, 5906, 7112, 11812, 20671, 23624, 41342, 82684, 165368, 375031, 750062, 1500124, 2625217, 3000248, 5250434, 10500868, 21001736]

約数ペア:

[(1, 21001736), (2, 10500868), (4, 5250434), (7, 3000248), (8, 2625217), (14, 1500124), (28, 750062), (56, 375031), (127, 165368), (254, 82684), (508, 41342), (889, 23624), (1016, 20671), (1778, 11812), (2953, 7112), (3556, 5906)]