28898793

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{223}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 55770624

約数和(自身を除く): 26871831

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 51, 63, 77, 99, 119, 121, 153, 187, 223, 231, 357, 363, 561, 669, 693, 847, 1071, 1089, 1309, 1561, 1683, 2007, 2057, 2453, 2541, 3791, 3927, 4683, 6171, 7359, 7623, 11373, 11781, 14049, 14399, 17171, 18513, 22077, 26537, 26983, 34119, 41701, 43197, 51513, 79611, 80949, 125103, 129591, 154539, 188881, 238833, 242847, 291907, 375309, 458711, 566643, 875721, 1376133, 1699929, 2627163, 3210977, 4128399, 9632931, 28898793]

約数ペア:

[(1, 28898793), (3, 9632931), (7, 4128399), (9, 3210977), (11, 2627163), (17, 1699929), (21, 1376133), (33, 875721), (51, 566643), (63, 458711), (77, 375309), (99, 291907), (119, 242847), (121, 238833), (153, 188881), (187, 154539), (223, 129591), (231, 125103), (357, 80949), (363, 79611), (561, 51513), (669, 43197), (693, 41701), (847, 34119), (1071, 26983), (1089, 26537), (1309, 22077), (1561, 18513), (1683, 17171), (2007, 14399), (2057, 14049), (2453, 11781), (2541, 11373), (3791, 7623), (3927, 7359), (4683, 6171)]