20980792

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{7069}}^1$

素因数の和:7135

約数の個数: 32

約数和(自身を含む): 45813600

約数和(自身を除く): 24832808

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 212, 371, 424, 742, 1484, 2968, 7069, 14138, 28276, 49483, 56552, 98966, 197932, 374657, 395864, 749314, 1498628, 2622599, 2997256, 5245198, 10490396, 20980792]

約数ペア:

[(1, 20980792), (2, 10490396), (4, 5245198), (7, 2997256), (8, 2622599), (14, 1498628), (28, 749314), (53, 395864), (56, 374657), (106, 197932), (212, 98966), (371, 56552), (424, 49483), (742, 28276), (1484, 14138), (2968, 7069)]