20904506

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{461}}^1$

素因数の和:590

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 16351174

約数列:

[1, 2, 7, 14, 41, 79, 82, 158, 287, 461, 553, 574, 922, 1106, 3227, 3239, 6454, 6478, 18901, 22673, 36419, 37802, 45346, 72838, 132307, 254933, 264614, 509866, 1493179, 2986358, 10452253, 20904506]

約数ペア:

[(1, 20904506), (2, 10452253), (7, 2986358), (14, 1493179), (41, 509866), (79, 264614), (82, 254933), (158, 132307), (287, 72838), (461, 45346), (553, 37802), (574, 36419), (922, 22673), (1106, 18901), (3227, 6478), (3239, 6454)]