20921164659

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{613}}^1\times {\mathrm{3041}}^1$

素因数の和:3732

約数の個数: 48

約数和(自身を含む): 32051242080

約数和(自身を除く): 11130077421

約数列:

[1, 3, 9, 29, 43, 87, 129, 261, 387, 613, 1247, 1839, 3041, 3741, 5517, 9123, 11223, 17777, 26359, 27369, 53331, 79077, 88189, 130763, 159993, 237231, 264567, 392289, 764411, 793701, 1176867, 1864133, 2293233, 3792127, 5592399, 6879699, 11376381, 16777197, 34129143, 54059857, 80157719, 162179571, 240473157, 486538713, 721419471, 2324573851, 6973721553, 20921164659]

約数ペア:

[(1, 20921164659), (3, 6973721553), (9, 2324573851), (29, 721419471), (43, 486538713), (87, 240473157), (129, 162179571), (261, 80157719), (387, 54059857), (613, 34129143), (1247, 16777197), (1839, 11376381), (3041, 6879699), (3741, 5592399), (5517, 3792127), (9123, 2293233), (11223, 1864133), (17777, 1176867), (26359, 793701), (27369, 764411), (53331, 392289), (79077, 264567), (88189, 237231), (130763, 159993)]