647432877

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{607}}^1\times {\mathrm{3907}}^1$

素因数の和:4537

約数の個数: 32

約数和(自身を含む): 1064476672

約数和(自身を除く): 417043795

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 607, 1821, 3907, 4249, 7891, 11721, 12747, 23673, 27349, 50791, 55237, 82047, 152373, 165711, 355537, 1066611, 2371549, 7114647, 16600843, 30830137, 49802529, 92490411, 215810959, 647432877]

約数ペア:

[(1, 647432877), (3, 215810959), (7, 92490411), (13, 49802529), (21, 30830137), (39, 16600843), (91, 7114647), (273, 2371549), (607, 1066611), (1821, 355537), (3907, 165711), (4249, 152373), (7891, 82047), (11721, 55237), (12747, 50791), (23673, 27349)]