20711776

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:403

約数の個数: 48

約数和(自身を含む): 43110144

約数和(自身を除く): 22398368

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 107, 184, 214, 263, 368, 428, 526, 736, 856, 1052, 1712, 2104, 2461, 3424, 4208, 4922, 6049, 8416, 9844, 12098, 19688, 24196, 28141, 39376, 48392, 56282, 78752, 96784, 112564, 193568, 225128, 450256, 647243, 900512, 1294486, 2588972, 5177944, 10355888, 20711776]

約数ペア:

[(1, 20711776), (2, 10355888), (4, 5177944), (8, 2588972), (16, 1294486), (23, 900512), (32, 647243), (46, 450256), (92, 225128), (107, 193568), (184, 112564), (214, 96784), (263, 78752), (368, 56282), (428, 48392), (526, 39376), (736, 28141), (856, 24196), (1052, 19688), (1712, 12098), (2104, 9844), (2461, 8416), (3424, 6049), (4208, 4922)]