18561824

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:405

約数の個数: 48

約数和(自身を含む): 39123000

約数和(自身を除く): 20561176

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 149, 229, 272, 298, 458, 544, 596, 916, 1192, 1832, 2384, 2533, 3664, 3893, 4768, 5066, 7328, 7786, 10132, 15572, 20264, 31144, 34121, 40528, 62288, 68242, 81056, 124576, 136484, 272968, 545936, 580057, 1091872, 1160114, 2320228, 4640456, 9280912, 18561824]

約数ペア:

[(1, 18561824), (2, 9280912), (4, 4640456), (8, 2320228), (16, 1160114), (17, 1091872), (32, 580057), (34, 545936), (68, 272968), (136, 136484), (149, 124576), (229, 81056), (272, 68242), (298, 62288), (458, 40528), (544, 34121), (596, 31144), (916, 20264), (1192, 15572), (1832, 10132), (2384, 7786), (2533, 7328), (3664, 5066), (3893, 4768)]