18715288319

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{1487}}^1\times {\mathrm{10639}}^1$

素因数の和:12159

約数の個数: 24

約数和(自身を含む): 23178516480

約数和(自身を除く): 4463228161

約数列:

[1, 7, 13, 91, 169, 1183, 1487, 10409, 10639, 19331, 74473, 135317, 138307, 251303, 968149, 1759121, 1797991, 12585937, 15820193, 110741351, 205662509, 1439637563, 2673612617, 18715288319]

約数ペア:

[(1, 18715288319), (7, 2673612617), (13, 1439637563), (91, 205662509), (169, 110741351), (1183, 15820193), (1487, 12585937), (10409, 1797991), (10639, 1759121), (19331, 968149), (74473, 251303), (135317, 138307)]