18123339

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 27143424

約数和(自身を除く): 9020085

約数列:

[1, 3, 13, 39, 43, 101, 107, 129, 303, 321, 559, 1313, 1391, 1677, 3939, 4173, 4343, 4601, 10807, 13029, 13803, 32421, 56459, 59813, 140491, 169377, 179439, 421473, 464701, 1394103, 6041113, 18123339]

約数ペア:

[(1, 18123339), (3, 6041113), (13, 1394103), (39, 464701), (43, 421473), (101, 179439), (107, 169377), (129, 140491), (303, 59813), (321, 56459), (559, 32421), (1313, 13803), (1391, 13029), (1677, 10807), (3939, 4601), (4173, 4343)]