15907199

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 21288960

約数和(自身を除く): 5381761

約数列:

[1, 7, 11, 19, 77, 83, 131, 133, 209, 581, 913, 917, 1441, 1463, 1577, 2489, 6391, 10087, 10873, 11039, 17347, 17423, 27379, 76111, 119603, 121429, 191653, 206587, 837221, 1446109, 2272457, 15907199]

約数ペア:

[(1, 15907199), (7, 2272457), (11, 1446109), (19, 837221), (77, 206587), (83, 191653), (131, 121429), (133, 119603), (209, 76111), (581, 27379), (913, 17423), (917, 17347), (1441, 11039), (1463, 10873), (1577, 10087), (2489, 6391)]