20193183

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{461}}^1$

素因数の和:655

約数の個数: 24

約数和(自身を含む): 30366336

約数和(自身を除く): 10173153

約数列:

[1, 3, 9, 31, 93, 157, 279, 461, 471, 1383, 1413, 4149, 4867, 14291, 14601, 42873, 43803, 72377, 128619, 217131, 651393, 2243687, 6731061, 20193183]

約数ペア:

[(1, 20193183), (3, 6731061), (9, 2243687), (31, 651393), (93, 217131), (157, 128619), (279, 72377), (461, 43803), (471, 42873), (1383, 14601), (1413, 14291), (4149, 4867)]