20808972

素因数分解:

$2^2\times 3^2\times {\mathrm{109}}^1\times {\mathrm{5303}}^1$

素因数の和:5422

約数の個数: 36

約数和(自身を含む): 53093040

約数和(自身を除く): 32284068

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 109, 218, 327, 436, 654, 981, 1308, 1962, 3924, 5303, 10606, 15909, 21212, 31818, 47727, 63636, 95454, 190908, 578027, 1156054, 1734081, 2312108, 3468162, 5202243, 6936324, 10404486, 20808972]

約数ペア:

[(1, 20808972), (2, 10404486), (3, 6936324), (4, 5202243), (6, 3468162), (9, 2312108), (12, 1734081), (18, 1156054), (36, 578027), (109, 190908), (218, 95454), (327, 63636), (436, 47727), (654, 31818), (981, 21212), (1308, 15909), (1962, 10606), (3924, 5303)]