20882307

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 30689280

約数和(自身を除く): 9806973

約数列:

[1, 3, 17, 51, 71, 73, 79, 213, 219, 237, 1207, 1241, 1343, 3621, 3723, 4029, 5183, 5609, 5767, 15549, 16827, 17301, 88111, 95353, 98039, 264333, 286059, 294117, 409457, 1228371, 6960769, 20882307]

約数ペア:

[(1, 20882307), (3, 6960769), (17, 1228371), (51, 409457), (71, 294117), (73, 286059), (79, 264333), (213, 98039), (219, 95353), (237, 88111), (1207, 17301), (1241, 16827), (1343, 15549), (3621, 5767), (3723, 5609), (4029, 5183)]