128423421

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{953}}^1$

素因数の和:1023

約数の個数: 64

約数和(自身を含む): 234455040

約数和(自身を除く): 106031619

約数列:

[1, 3, 7, 9, 21, 23, 27, 31, 63, 69, 93, 161, 189, 207, 217, 279, 483, 621, 651, 713, 837, 953, 1449, 1953, 2139, 2859, 4347, 4991, 5859, 6417, 6671, 8577, 14973, 19251, 20013, 21919, 25731, 29543, 44919, 60039, 65757, 88629, 134757, 153433, 180117, 197271, 206801, 265887, 460299, 591813, 620403, 679489, 797661, 1380897, 1861209, 2038467, 4142691, 4756423, 5583627, 6115401, 14269269, 18346203, 42807807, 128423421]

約数ペア:

[(1, 128423421), (3, 42807807), (7, 18346203), (9, 14269269), (21, 6115401), (23, 5583627), (27, 4756423), (31, 4142691), (63, 2038467), (69, 1861209), (93, 1380897), (161, 797661), (189, 679489), (207, 620403), (217, 591813), (279, 460299), (483, 265887), (621, 206801), (651, 197271), (713, 180117), (837, 153433), (953, 134757), (1449, 88629), (1953, 65757), (2139, 60039), (2859, 44919), (4347, 29543), (4991, 25731), (5859, 21919), (6417, 20013), (6671, 19251), (8577, 14973)]