278327301

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{431}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 453869568

約数和(自身を除く): 175542267

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 191, 431, 483, 573, 1127, 1293, 1337, 3017, 3381, 4011, 4393, 9051, 9359, 9913, 13179, 21119, 28077, 29739, 30751, 63357, 69391, 82321, 92253, 208173, 215257, 246963, 485737, 576247, 645771, 1457211, 1728741, 1893383, 4033729, 5680149, 12101187, 13253681, 39761043, 92775767, 278327301]

約数ペア:

[(1, 278327301), (3, 92775767), (7, 39761043), (21, 13253681), (23, 12101187), (49, 5680149), (69, 4033729), (147, 1893383), (161, 1728741), (191, 1457211), (431, 645771), (483, 576247), (573, 485737), (1127, 246963), (1293, 215257), (1337, 208173), (3017, 92253), (3381, 82321), (4011, 69391), (4393, 63357), (9051, 30751), (9359, 29739), (9913, 28077), (13179, 21119)]