20111812

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{17519}}^1$

素因数の和:17571

約数の個数: 24

約数和(自身を含む): 41207040

約数和(自身を除く): 21095228

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 17519, 35038, 70076, 122633, 245266, 490532, 718279, 1436558, 2873116, 5027953, 10055906, 20111812]

約数ペア:

[(1, 20111812), (2, 10055906), (4, 5027953), (7, 2873116), (14, 1436558), (28, 718279), (41, 490532), (82, 245266), (164, 122633), (287, 70076), (574, 35038), (1148, 17519)]