21662896

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1091}}^1$

素因数の和:1189

約数の個数: 40

約数和(自身を含む): 45090864

約数和(自身を除く): 23427968

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 73, 136, 146, 272, 292, 584, 1091, 1168, 1241, 2182, 2482, 4364, 4964, 8728, 9928, 17456, 18547, 19856, 37094, 74188, 79643, 148376, 159286, 296752, 318572, 637144, 1274288, 1353931, 2707862, 5415724, 10831448, 21662896]

約数ペア:

[(1, 21662896), (2, 10831448), (4, 5415724), (8, 2707862), (16, 1353931), (17, 1274288), (34, 637144), (68, 318572), (73, 296752), (136, 159286), (146, 148376), (272, 79643), (292, 74188), (584, 37094), (1091, 19856), (1168, 18547), (1241, 17456), (2182, 9928), (2482, 8728), (4364, 4964)]