20959554

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{6481}}^1$

素因数の和:6511

約数の個数: 48

約数和(自身を含む): 53204256

約数和(自身を除く): 32244702

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 49, 66, 77, 98, 147, 154, 231, 294, 462, 539, 1078, 1617, 3234, 6481, 12962, 19443, 38886, 45367, 71291, 90734, 136101, 142582, 213873, 272202, 317569, 427746, 499037, 635138, 952707, 998074, 1497111, 1905414, 2994222, 3493259, 6986518, 10479777, 20959554]

約数ペア:

[(1, 20959554), (2, 10479777), (3, 6986518), (6, 3493259), (7, 2994222), (11, 1905414), (14, 1497111), (21, 998074), (22, 952707), (33, 635138), (42, 499037), (49, 427746), (66, 317569), (77, 272202), (98, 213873), (147, 142582), (154, 136101), (231, 90734), (294, 71291), (462, 45367), (539, 38886), (1078, 19443), (1617, 12962), (3234, 6481)]