18664408

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:416

約数の個数: 64

約数和(自身を含む): 42831360

約数和(自身を除く): 24166952

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 43, 46, 56, 86, 92, 161, 172, 184, 301, 322, 337, 344, 602, 644, 674, 989, 1204, 1288, 1348, 1978, 2359, 2408, 2696, 3956, 4718, 6923, 7751, 7912, 9436, 13846, 14491, 15502, 18872, 27692, 28982, 31004, 54257, 55384, 57964, 62008, 101437, 108514, 115928, 202874, 217028, 333293, 405748, 434056, 666586, 811496, 1333172, 2333051, 2666344, 4666102, 9332204, 18664408]

約数ペア:

[(1, 18664408), (2, 9332204), (4, 4666102), (7, 2666344), (8, 2333051), (14, 1333172), (23, 811496), (28, 666586), (43, 434056), (46, 405748), (56, 333293), (86, 217028), (92, 202874), (161, 115928), (172, 108514), (184, 101437), (301, 62008), (322, 57964), (337, 55384), (344, 54257), (602, 31004), (644, 28982), (674, 27692), (989, 18872), (1204, 15502), (1288, 14491), (1348, 13846), (1978, 9436), (2359, 7912), (2408, 7751), (2696, 6923), (3956, 4718)]