19977363

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{811}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 36481536

約数和(自身を除く): 16504173

約数列:

[1, 3, 7, 9, 17, 21, 23, 51, 63, 69, 119, 153, 161, 207, 357, 391, 483, 811, 1071, 1173, 1449, 2433, 2737, 3519, 5677, 7299, 8211, 13787, 17031, 18653, 24633, 41361, 51093, 55959, 96509, 124083, 130571, 167877, 289527, 317101, 391713, 868581, 951303, 1175139, 2219707, 2853909, 6659121, 19977363]

約数ペア:

[(1, 19977363), (3, 6659121), (7, 2853909), (9, 2219707), (17, 1175139), (21, 951303), (23, 868581), (51, 391713), (63, 317101), (69, 289527), (119, 167877), (153, 130571), (161, 124083), (207, 96509), (357, 55959), (391, 51093), (483, 41361), (811, 24633), (1071, 18653), (1173, 17031), (1449, 13787), (2433, 8211), (2737, 7299), (3519, 5677)]