31242123

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 20649717

約数列:

[1, 3, 9, 11, 33, 41, 43, 99, 123, 129, 179, 369, 387, 451, 473, 537, 1353, 1419, 1611, 1763, 1969, 4059, 4257, 5289, 5907, 7339, 7697, 15867, 17721, 19393, 22017, 23091, 58179, 66051, 69273, 80729, 84667, 174537, 242187, 254001, 315577, 726561, 762003, 946731, 2840193, 3471347, 10414041, 31242123]

約数ペア:

[(1, 31242123), (3, 10414041), (9, 3471347), (11, 2840193), (33, 946731), (41, 762003), (43, 726561), (99, 315577), (123, 254001), (129, 242187), (179, 174537), (369, 84667), (387, 80729), (451, 69273), (473, 66051), (537, 58179), (1353, 23091), (1419, 22017), (1611, 19393), (1763, 17721), (1969, 15867), (4059, 7697), (4257, 7339), (5289, 5907)]