20397104

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14009}}^1$

素因数の和:14037

約数の個数: 40

約数和(自身を含む): 48642720

約数和(自身を除く): 28245616

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14009, 28018, 56036, 98063, 112072, 182117, 196126, 224144, 364234, 392252, 728468, 784504, 1274819, 1456936, 1569008, 2549638, 2913872, 5099276, 10198552, 20397104]

約数ペア:

[(1, 20397104), (2, 10198552), (4, 5099276), (7, 2913872), (8, 2549638), (13, 1569008), (14, 1456936), (16, 1274819), (26, 784504), (28, 728468), (52, 392252), (56, 364234), (91, 224144), (104, 196126), (112, 182117), (182, 112072), (208, 98063), (364, 56036), (728, 28018), (1456, 14009)]