20925606

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{367}}^1$

素因数の和:445

約数の個数: 64

約数和(自身を含む): 48964608

約数和(自身を除く): 28039002

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 43, 51, 78, 86, 102, 129, 221, 258, 367, 442, 559, 663, 731, 734, 1101, 1118, 1326, 1462, 1677, 2193, 2202, 3354, 4386, 4771, 6239, 9503, 9542, 12478, 14313, 15781, 18717, 19006, 28509, 28626, 31562, 37434, 47343, 57018, 81107, 94686, 162214, 205153, 243321, 268277, 410306, 486642, 536554, 615459, 804831, 1230918, 1609662, 3487601, 6975202, 10462803, 20925606]

約数ペア:

[(1, 20925606), (2, 10462803), (3, 6975202), (6, 3487601), (13, 1609662), (17, 1230918), (26, 804831), (34, 615459), (39, 536554), (43, 486642), (51, 410306), (78, 268277), (86, 243321), (102, 205153), (129, 162214), (221, 94686), (258, 81107), (367, 57018), (442, 47343), (559, 37434), (663, 31562), (731, 28626), (734, 28509), (1101, 19006), (1118, 18717), (1326, 15781), (1462, 14313), (1677, 12478), (2193, 9542), (2202, 9503), (3354, 6239), (4386, 4771)]