20920328

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18287}}^1$

素因数の和:18317

約数の個数: 32

約数和(自身を含む): 46085760

約数和(自身を除く): 25165432

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18287, 36574, 73148, 146296, 201157, 237731, 402314, 475462, 804628, 950924, 1609256, 1901848, 2615041, 5230082, 10460164, 20920328]

約数ペア:

[(1, 20920328), (2, 10460164), (4, 5230082), (8, 2615041), (11, 1901848), (13, 1609256), (22, 950924), (26, 804628), (44, 475462), (52, 402314), (88, 237731), (104, 201157), (143, 146296), (286, 73148), (572, 36574), (1144, 18287)]