21471656

素因数分解:

$2^3\times {\mathrm{509}}^1\times {\mathrm{5273}}^1$

素因数の和:5788

約数の個数: 16

約数和(自身を含む): 40346100

約数和(自身を除く): 18874444

約数列:

[1, 2, 4, 8, 509, 1018, 2036, 4072, 5273, 10546, 21092, 42184, 2683957, 5367914, 10735828, 21471656]

約数ペア:

[(1, 21471656), (2, 10735828), (4, 5367914), (8, 2683957), (509, 42184), (1018, 21092), (2036, 10546), (4072, 5273)]