20985768

素因数分解:

$2^3\times 3^2\times {\mathrm{41}}^1\times {\mathrm{7109}}^1$

素因数の和:7162

約数の個数: 48

約数和(自身を含む): 58230900

約数和(自身を除く): 37245132

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 41, 72, 82, 123, 164, 246, 328, 369, 492, 738, 984, 1476, 2952, 7109, 14218, 21327, 28436, 42654, 56872, 63981, 85308, 127962, 170616, 255924, 291469, 511848, 582938, 874407, 1165876, 1748814, 2331752, 2623221, 3497628, 5246442, 6995256, 10492884, 20985768]

約数ペア:

[(1, 20985768), (2, 10492884), (3, 6995256), (4, 5246442), (6, 3497628), (8, 2623221), (9, 2331752), (12, 1748814), (18, 1165876), (24, 874407), (36, 582938), (41, 511848), (72, 291469), (82, 255924), (123, 170616), (164, 127962), (246, 85308), (328, 63981), (369, 56872), (492, 42654), (738, 28436), (984, 21327), (1476, 14218), (2952, 7109)]