19905966

素因数分解:

$2^1\times 3^3\times {\mathrm{449}}^1\times {\mathrm{821}}^1$

素因数の和:1281

約数の個数: 32

約数和(自身を含む): 44388000

約数和(自身を除く): 24482034

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 449, 821, 898, 1347, 1642, 2463, 2694, 4041, 4926, 7389, 8082, 12123, 14778, 22167, 24246, 44334, 368629, 737258, 1105887, 2211774, 3317661, 6635322, 9952983, 19905966]

約数ペア:

[(1, 19905966), (2, 9952983), (3, 6635322), (6, 3317661), (9, 2211774), (18, 1105887), (27, 737258), (54, 368629), (449, 44334), (821, 24246), (898, 22167), (1347, 14778), (1642, 12123), (2463, 8082), (2694, 7389), (4041, 4926)]