20976844

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{347}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 44900352

約数和(自身を除く): 23923508

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 127, 238, 254, 347, 476, 508, 694, 889, 1388, 1778, 2159, 2429, 3556, 4318, 4858, 5899, 8636, 9716, 11798, 15113, 23596, 30226, 41293, 44069, 60452, 82586, 88138, 165172, 176276, 308483, 616966, 749173, 1233932, 1498346, 2996692, 5244211, 10488422, 20976844]

約数ペア:

[(1, 20976844), (2, 10488422), (4, 5244211), (7, 2996692), (14, 1498346), (17, 1233932), (28, 749173), (34, 616966), (68, 308483), (119, 176276), (127, 165172), (238, 88138), (254, 82586), (347, 60452), (476, 44069), (508, 41293), (694, 30226), (889, 23596), (1388, 15113), (1778, 11798), (2159, 9716), (2429, 8636), (3556, 5899), (4318, 4858)]