20556844

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2153}}^1$

素因数の和:2206

約数の個数: 48

約数和(自身を含む): 46319616

約数和(自身を除く): 25762772

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 124, 154, 217, 308, 341, 434, 682, 868, 1364, 2153, 2387, 4306, 4774, 8612, 9548, 15071, 23683, 30142, 47366, 60284, 66743, 94732, 133486, 165781, 266972, 331562, 467201, 663124, 734173, 934402, 1468346, 1868804, 2936692, 5139211, 10278422, 20556844]

約数ペア:

[(1, 20556844), (2, 10278422), (4, 5139211), (7, 2936692), (11, 1868804), (14, 1468346), (22, 934402), (28, 734173), (31, 663124), (44, 467201), (62, 331562), (77, 266972), (124, 165781), (154, 133486), (217, 94732), (308, 66743), (341, 60284), (434, 47366), (682, 30142), (868, 23683), (1364, 15071), (2153, 9548), (2387, 8612), (4306, 4774)]