27687009

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 47278080

約数和(自身を除く): 19591071

約数列:

[1, 3, 7, 19, 21, 23, 49, 57, 69, 133, 147, 161, 399, 431, 437, 483, 931, 1127, 1293, 1311, 2793, 3017, 3059, 3381, 8189, 9051, 9177, 9913, 21119, 21413, 24567, 29739, 57323, 63357, 64239, 69391, 171969, 188347, 208173, 401261, 485737, 565041, 1203783, 1318429, 1457211, 3955287, 9229003, 27687009]

約数ペア:

[(1, 27687009), (3, 9229003), (7, 3955287), (19, 1457211), (21, 1318429), (23, 1203783), (49, 565041), (57, 485737), (69, 401261), (133, 208173), (147, 188347), (161, 171969), (399, 69391), (431, 64239), (437, 63357), (483, 57323), (931, 29739), (1127, 24567), (1293, 21413), (1311, 21119), (2793, 9913), (3017, 9177), (3059, 9051), (3381, 8189)]