20782552

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5227}}^1$

素因数の和:5311

約数の個数: 32

約数和(自身を含む): 45169920

約数和(自身を除く): 24387368

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 5227, 10454, 20908, 36589, 41816, 73178, 146356, 292712, 371117, 742234, 1484468, 2597819, 2968936, 5195638, 10391276, 20782552]

約数ペア:

[(1, 20782552), (2, 10391276), (4, 5195638), (7, 2968936), (8, 2597819), (14, 1484468), (28, 742234), (56, 371117), (71, 292712), (142, 146356), (284, 73178), (497, 41816), (568, 36589), (994, 20908), (1988, 10454), (3976, 5227)]