18537687

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2281}}^1$

素因数の和:2340

約数の個数: 32

約数和(自身を含む): 32130560

約数和(自身を除く): 13592873

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2281, 2709, 6843, 8127, 15967, 20529, 47901, 61587, 98083, 143703, 294249, 431109, 686581, 882747, 2059743, 2648241, 6179229, 18537687]

約数ペア:

[(1, 18537687), (3, 6179229), (7, 2648241), (9, 2059743), (21, 882747), (27, 686581), (43, 431109), (63, 294249), (129, 143703), (189, 98083), (301, 61587), (387, 47901), (903, 20529), (1161, 15967), (2281, 8127), (2709, 6843)]