21491264

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{19753}}^1$

素因数の和:19782

約数の個数: 28

約数和(自身を含む): 45157644

約数和(自身を除く): 23666380

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1088, 19753, 39506, 79012, 158024, 316048, 335801, 632096, 671602, 1264192, 1343204, 2686408, 5372816, 10745632, 21491264]

約数ペア:

[(1, 21491264), (2, 10745632), (4, 5372816), (8, 2686408), (16, 1343204), (17, 1264192), (32, 671602), (34, 632096), (64, 335801), (68, 316048), (136, 158024), (272, 79012), (544, 39506), (1088, 19753)]