20951392

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^2\times {\mathrm{773}}^1$

素因数の和:812

約数の個数: 72

約数和(自身を含む): 51882768

約数和(自身を除く): 30931376

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 121, 154, 176, 224, 242, 308, 352, 484, 616, 773, 847, 968, 1232, 1546, 1694, 1936, 2464, 3092, 3388, 3872, 5411, 6184, 6776, 8503, 10822, 12368, 13552, 17006, 21644, 24736, 27104, 34012, 43288, 59521, 68024, 86576, 93533, 119042, 136048, 173152, 187066, 238084, 272096, 374132, 476168, 654731, 748264, 952336, 1309462, 1496528, 1904672, 2618924, 2993056, 5237848, 10475696, 20951392]

約数ペア:

[(1, 20951392), (2, 10475696), (4, 5237848), (7, 2993056), (8, 2618924), (11, 1904672), (14, 1496528), (16, 1309462), (22, 952336), (28, 748264), (32, 654731), (44, 476168), (56, 374132), (77, 272096), (88, 238084), (112, 187066), (121, 173152), (154, 136048), (176, 119042), (224, 93533), (242, 86576), (308, 68024), (352, 59521), (484, 43288), (616, 34012), (773, 27104), (847, 24736), (968, 21644), (1232, 17006), (1546, 13552), (1694, 12368), (1936, 10822), (2464, 8503), (3092, 6776), (3388, 6184), (3872, 5411)]