21306790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{883}}^1$

素因数の和:1036

約数の個数: 32

約数和(自身を含む): 40734720

約数和(自身を除く): 19427930

約数列:

[1, 2, 5, 10, 19, 38, 95, 127, 190, 254, 635, 883, 1270, 1766, 2413, 4415, 4826, 8830, 12065, 16777, 24130, 33554, 83885, 112141, 167770, 224282, 560705, 1121410, 2130679, 4261358, 10653395, 21306790]

約数ペア:

[(1, 21306790), (2, 10653395), (5, 4261358), (10, 2130679), (19, 1121410), (38, 560705), (95, 224282), (127, 167770), (190, 112141), (254, 83885), (635, 33554), (883, 24130), (1270, 16777), (1766, 12065), (2413, 8830), (4415, 4826)]