17881812

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2011}}^1$

素因数の和:2053

約数の個数: 72

約数和(自身を含む): 51265760

約数和(自身を除く): 33383948

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2011, 2223, 2964, 4022, 4446, 6033, 8044, 8892, 12066, 18099, 24132, 26143, 36198, 38209, 52286, 72396, 76418, 78429, 104572, 114627, 152836, 156858, 229254, 235287, 313716, 343881, 458508, 470574, 496717, 687762, 941148, 993434, 1375524, 1490151, 1986868, 2980302, 4470453, 5960604, 8940906, 17881812]

約数ペア:

[(1, 17881812), (2, 8940906), (3, 5960604), (4, 4470453), (6, 2980302), (9, 1986868), (12, 1490151), (13, 1375524), (18, 993434), (19, 941148), (26, 687762), (36, 496717), (38, 470574), (39, 458508), (52, 343881), (57, 313716), (76, 235287), (78, 229254), (114, 156858), (117, 152836), (156, 114627), (171, 104572), (228, 78429), (234, 76418), (247, 72396), (342, 52286), (468, 38209), (494, 36198), (684, 26143), (741, 24132), (988, 18099), (1482, 12066), (2011, 8892), (2223, 8044), (2964, 6033), (4022, 4446)]