15998997

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 25224192

約数和(自身を除く): 9225195

約数列:

[1, 3, 7, 21, 67, 83, 137, 201, 249, 411, 469, 581, 959, 1407, 1743, 2877, 5561, 9179, 11371, 16683, 27537, 34113, 38927, 64253, 79597, 116781, 192759, 238791, 761857, 2285571, 5332999, 15998997]

約数ペア:

[(1, 15998997), (3, 5332999), (7, 2285571), (21, 761857), (67, 238791), (83, 192759), (137, 116781), (201, 79597), (249, 64253), (411, 38927), (469, 34113), (581, 27537), (959, 16683), (1407, 11371), (1743, 9179), (2877, 5561)]