221981799

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{347}}^1\times {\mathrm{349}}^1$

素因数の和:759

約数の個数: 32

約数和(自身を含む): 327398400

約数和(自身を除く): 105416601

約数列:

[1, 3, 13, 39, 47, 141, 347, 349, 611, 1041, 1047, 1833, 4511, 4537, 13533, 13611, 16309, 16403, 48927, 49209, 121103, 212017, 213239, 363309, 636051, 639717, 1574339, 4723017, 5691841, 17075523, 73993933, 221981799]

約数ペア:

[(1, 221981799), (3, 73993933), (13, 17075523), (39, 5691841), (47, 4723017), (141, 1574339), (347, 639717), (349, 636051), (611, 363309), (1041, 213239), (1047, 212017), (1833, 121103), (4511, 49209), (4537, 48927), (13533, 16403), (13611, 16309)]