18639339

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 27033600

約数和(自身を除く): 8394261

約数列:

[1, 3, 31, 43, 59, 79, 93, 129, 177, 237, 1333, 1829, 2449, 2537, 3397, 3999, 4661, 5487, 7347, 7611, 10191, 13983, 78647, 105307, 144491, 200423, 235941, 315921, 433473, 601269, 6213113, 18639339]

約数ペア:

[(1, 18639339), (3, 6213113), (31, 601269), (43, 433473), (59, 315921), (79, 235941), (93, 200423), (129, 144491), (177, 105307), (237, 78647), (1333, 13983), (1829, 10191), (2449, 7611), (2537, 7347), (3397, 5487), (3999, 4661)]