21000455478

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{17413313}}^1$

素因数の和:17413388

約数の個数: 24

約数和(自身を含む): 46180108728

約数和(自身を除く): 25179653250

約数列:

[1, 2, 3, 6, 9, 18, 67, 134, 201, 402, 603, 1206, 17413313, 34826626, 52239939, 104479878, 156719817, 313439634, 1166691971, 2333383942, 3500075913, 7000151826, 10500227739, 21000455478]

約数ペア:

[(1, 21000455478), (2, 10500227739), (3, 7000151826), (6, 3500075913), (9, 2333383942), (18, 1166691971), (67, 313439634), (134, 156719817), (201, 104479878), (402, 52239939), (603, 34826626), (1206, 17413313)]