51781779

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{6907}}^1$

素因数の和:6944

約数の個数: 36

約数和(自身を含む): 92138904

約数和(自身を除く): 40357125

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 357, 441, 833, 1071, 2499, 6907, 7497, 20721, 48349, 62163, 117419, 145047, 338443, 352257, 435141, 821933, 1015329, 1056771, 2465799, 3045987, 5753531, 7397397, 17260593, 51781779]

約数ペア:

[(1, 51781779), (3, 17260593), (7, 7397397), (9, 5753531), (17, 3045987), (21, 2465799), (49, 1056771), (51, 1015329), (63, 821933), (119, 435141), (147, 352257), (153, 338443), (357, 145047), (441, 117419), (833, 62163), (1071, 48349), (2499, 20721), (6907, 7497)]