21092092

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 43872192

約数和(自身を除く): 22780100

約数列:

[1, 2, 4, 7, 14, 28, 53, 61, 106, 122, 212, 233, 244, 371, 427, 466, 742, 854, 932, 1484, 1631, 1708, 3233, 3262, 6466, 6524, 12349, 12932, 14213, 22631, 24698, 28426, 45262, 49396, 56852, 86443, 90524, 99491, 172886, 198982, 345772, 397964, 753289, 1506578, 3013156, 5273023, 10546046, 21092092]

約数ペア:

[(1, 21092092), (2, 10546046), (4, 5273023), (7, 3013156), (14, 1506578), (28, 753289), (53, 397964), (61, 345772), (106, 198982), (122, 172886), (212, 99491), (233, 90524), (244, 86443), (371, 56852), (427, 49396), (466, 45262), (742, 28426), (854, 24698), (932, 22631), (1484, 14213), (1631, 12932), (1708, 12349), (3233, 6524), (3262, 6466)]