21494732

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{6451}}^1$

素因数の和:6486

約数の個数: 36

約数和(自身を含む): 46338264

約数和(自身を除く): 24843532

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 119, 196, 238, 476, 833, 1666, 3332, 6451, 12902, 25804, 45157, 90314, 109667, 180628, 219334, 316099, 438668, 632198, 767669, 1264396, 1535338, 3070676, 5373683, 10747366, 21494732]

約数ペア:

[(1, 21494732), (2, 10747366), (4, 5373683), (7, 3070676), (14, 1535338), (17, 1264396), (28, 767669), (34, 632198), (49, 438668), (68, 316099), (98, 219334), (119, 180628), (196, 109667), (238, 90314), (476, 45157), (833, 25804), (1666, 12902), (3332, 6451)]