21027538

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1667}}^1$

素因数の和:1746

約数の個数: 32

約数和(自身を含む): 38911104

約数和(自身を除く): 17883566

約数列:

[1, 2, 7, 14, 17, 34, 53, 106, 119, 238, 371, 742, 901, 1667, 1802, 3334, 6307, 11669, 12614, 23338, 28339, 56678, 88351, 176702, 198373, 396746, 618457, 1236914, 1501967, 3003934, 10513769, 21027538]

約数ペア:

[(1, 21027538), (2, 10513769), (7, 3003934), (14, 1501967), (17, 1236914), (34, 618457), (53, 396746), (106, 198373), (119, 176702), (238, 88351), (371, 56678), (742, 28339), (901, 23338), (1667, 12614), (1802, 11669), (3334, 6307)]