21644655

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{4993}}^1$

素因数の和:5035

約数の個数: 24

約数和(自身を含む): 36795792

約数和(自身を除く): 15151137

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 867, 1445, 4335, 4993, 14979, 24965, 74895, 84881, 254643, 424405, 1273215, 1442977, 4328931, 7214885, 21644655]

約数ペア:

[(1, 21644655), (3, 7214885), (5, 4328931), (15, 1442977), (17, 1273215), (51, 424405), (85, 254643), (255, 84881), (289, 74895), (867, 24965), (1445, 14979), (4335, 4993)]