19961944

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3967}}^1$

素因数の和:4027

約数の個数: 32

約数和(自身を含む): 40711680

約数和(自身を除く): 20749736

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 296, 629, 1258, 2516, 3967, 5032, 7934, 15868, 31736, 67439, 134878, 146779, 269756, 293558, 539512, 587116, 1174232, 2495243, 4990486, 9980972, 19961944]

約数ペア:

[(1, 19961944), (2, 9980972), (4, 4990486), (8, 2495243), (17, 1174232), (34, 587116), (37, 539512), (68, 293558), (74, 269756), (136, 146779), (148, 134878), (296, 67439), (629, 31736), (1258, 15868), (2516, 7934), (3967, 5032)]