20822144

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1367}}^1$

素因数の和:1405

約数の個数: 64

約数和(自身を含む): 50232960

約数和(自身を除く): 29410816

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 272, 448, 476, 544, 896, 952, 1088, 1367, 1904, 2176, 2734, 3808, 5468, 7616, 9569, 10936, 15232, 19138, 21872, 23239, 38276, 43744, 46478, 76552, 87488, 92956, 153104, 162673, 174976, 185912, 306208, 325346, 371824, 612416, 650692, 743648, 1224832, 1301384, 1487296, 2602768, 2974592, 5205536, 10411072, 20822144]

約数ペア:

[(1, 20822144), (2, 10411072), (4, 5205536), (7, 2974592), (8, 2602768), (14, 1487296), (16, 1301384), (17, 1224832), (28, 743648), (32, 650692), (34, 612416), (56, 371824), (64, 325346), (68, 306208), (112, 185912), (119, 174976), (128, 162673), (136, 153104), (224, 92956), (238, 87488), (272, 76552), (448, 46478), (476, 43744), (544, 38276), (896, 23239), (952, 21872), (1088, 19138), (1367, 15232), (1904, 10936), (2176, 9569), (2734, 7616), (3808, 5468)]