19922776

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{557}}^1$

素因数の和:843

約数の個数: 32

約数和(自身を含む): 39774240

約数和(自身を除く): 19851464

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 263, 526, 557, 1052, 1114, 2104, 2228, 4456, 4471, 8942, 9469, 17884, 18938, 35768, 37876, 75752, 146491, 292982, 585964, 1171928, 2490347, 4980694, 9961388, 19922776]

約数ペア:

[(1, 19922776), (2, 9961388), (4, 4980694), (8, 2490347), (17, 1171928), (34, 585964), (68, 292982), (136, 146491), (263, 75752), (526, 37876), (557, 35768), (1052, 18938), (1114, 17884), (2104, 9469), (2228, 8942), (4456, 4471)]