18984498

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{243391}}^1$

素因数の和:243409

約数の個数: 16

約数和(自身を含む): 40889856

約数和(自身を除く): 21905358

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 243391, 486782, 730173, 1460346, 3164083, 6328166, 9492249, 18984498]

約数ペア:

[(1, 18984498), (2, 9492249), (3, 6328166), (6, 3164083), (13, 1460346), (26, 730173), (39, 486782), (78, 243391)]