17940976

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:433

約数の個数: 40

約数和(自身を含む): 36091440

約数和(自身を除く): 18150464

約数列:

[1, 2, 4, 8, 16, 43, 86, 89, 172, 178, 293, 344, 356, 586, 688, 712, 1172, 1424, 2344, 3827, 4688, 7654, 12599, 15308, 25198, 26077, 30616, 50396, 52154, 61232, 100792, 104308, 201584, 208616, 417232, 1121311, 2242622, 4485244, 8970488, 17940976]

約数ペア:

[(1, 17940976), (2, 8970488), (4, 4485244), (8, 2242622), (16, 1121311), (43, 417232), (86, 208616), (89, 201584), (172, 104308), (178, 100792), (293, 61232), (344, 52154), (356, 50396), (586, 30616), (688, 26077), (712, 25198), (1172, 15308), (1424, 12599), (2344, 7654), (3827, 4688)]