20131990109

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{857}}^1\times {\mathrm{1063}}^1$

素因数の和:1986

約数の個数: 48

約数和(自身を含む): 26226135936

約数和(自身を除く): 6094145827

約数列:

[1, 7, 11, 41, 49, 77, 287, 451, 539, 857, 1063, 2009, 3157, 5999, 7441, 9427, 11693, 22099, 35137, 41993, 43583, 52087, 65989, 81851, 245959, 305081, 386507, 461923, 479413, 572957, 910991, 1721713, 2135567, 2705549, 3355891, 6376937, 10020901, 18938843, 23491237, 37350631, 44638559, 70146307, 261454417, 410856941, 491024149, 1830180919, 2875998587, 20131990109]

約数ペア:

[(1, 20131990109), (7, 2875998587), (11, 1830180919), (41, 491024149), (49, 410856941), (77, 261454417), (287, 70146307), (451, 44638559), (539, 37350631), (857, 23491237), (1063, 18938843), (2009, 10020901), (3157, 6376937), (5999, 3355891), (7441, 2705549), (9427, 2135567), (11693, 1721713), (22099, 910991), (35137, 572957), (41993, 479413), (43583, 461923), (52087, 386507), (65989, 305081), (81851, 245959)]