21550872

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3467}}^1$

素因数の和:3520

約数の個数: 64

約数和(自身を含む): 63256320

約数和(自身を除く): 41705448

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 37, 42, 56, 74, 84, 111, 148, 168, 222, 259, 296, 444, 518, 777, 888, 1036, 1554, 2072, 3108, 3467, 6216, 6934, 10401, 13868, 20802, 24269, 27736, 41604, 48538, 72807, 83208, 97076, 128279, 145614, 194152, 256558, 291228, 384837, 513116, 582456, 769674, 897953, 1026232, 1539348, 1795906, 2693859, 3078696, 3591812, 5387718, 7183624, 10775436, 21550872]

約数ペア:

[(1, 21550872), (2, 10775436), (3, 7183624), (4, 5387718), (6, 3591812), (7, 3078696), (8, 2693859), (12, 1795906), (14, 1539348), (21, 1026232), (24, 897953), (28, 769674), (37, 582456), (42, 513116), (56, 384837), (74, 291228), (84, 256558), (111, 194152), (148, 145614), (168, 128279), (222, 97076), (259, 83208), (296, 72807), (444, 48538), (518, 41604), (777, 27736), (888, 24269), (1036, 20802), (1554, 13868), (2072, 10401), (3108, 6934), (3467, 6216)]