20177997

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1949}}^1$

素因数の和:2005

約数の個数: 32

約数和(自身を含む): 33696000

約数和(自身を除く): 13518003

約数列:

[1, 3, 7, 17, 21, 29, 51, 87, 119, 203, 357, 493, 609, 1479, 1949, 3451, 5847, 10353, 13643, 33133, 40929, 56521, 99399, 169563, 231931, 395647, 695793, 960857, 1186941, 2882571, 6725999, 20177997]

約数ペア:

[(1, 20177997), (3, 6725999), (7, 2882571), (17, 1186941), (21, 960857), (29, 695793), (51, 395647), (87, 231931), (119, 169563), (203, 99399), (357, 56521), (493, 40929), (609, 33133), (1479, 13643), (1949, 10353), (3451, 5847)]