20391826

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5897}}^1$

素因数の和:5938

約数の個数: 32

約数和(自身を含む): 39634560

約数和(自身を除く): 19242734

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1729, 3458, 5897, 11794, 41279, 76661, 82558, 112043, 153322, 224086, 536627, 784301, 1073254, 1456559, 1568602, 2913118, 10195913, 20391826]

約数ペア:

[(1, 20391826), (2, 10195913), (7, 2913118), (13, 1568602), (14, 1456559), (19, 1073254), (26, 784301), (38, 536627), (91, 224086), (133, 153322), (182, 112043), (247, 82558), (266, 76661), (494, 41279), (1729, 11794), (3458, 5897)]