20717339972

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2089}}^1\times {\mathrm{8237}}^1$

素因数の和:10380

約数の個数: 48

約数和(自身を含む): 42423722880

約数和(自身を除く): 21706382908

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 2089, 4178, 8237, 8356, 14623, 16474, 29246, 32948, 57659, 58492, 89827, 115318, 179654, 230636, 354191, 359308, 628789, 708382, 1257578, 1416764, 2479337, 2515156, 4958674, 9917348, 17207093, 34414186, 68828372, 120449651, 240899302, 481798604, 739904999, 1479809998, 2959619996, 5179334993, 10358669986, 20717339972]

約数ペア:

[(1, 20717339972), (2, 10358669986), (4, 5179334993), (7, 2959619996), (14, 1479809998), (28, 739904999), (43, 481798604), (86, 240899302), (172, 120449651), (301, 68828372), (602, 34414186), (1204, 17207093), (2089, 9917348), (4178, 4958674), (8237, 2515156), (8356, 2479337), (14623, 1416764), (16474, 1257578), (29246, 708382), (32948, 628789), (57659, 359308), (58492, 354191), (89827, 230636), (115318, 179654)]