19938006

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{997}}^1$

素因数の和:1117

約数の個数: 48

約数和(自身を含む): 47640528

約数和(自身を除く): 27702522

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 101, 198, 202, 303, 606, 909, 997, 1111, 1818, 1994, 2222, 2991, 3333, 5982, 6666, 8973, 9999, 10967, 17946, 19998, 21934, 32901, 65802, 98703, 100697, 197406, 201394, 302091, 604182, 906273, 1107667, 1812546, 2215334, 3323001, 6646002, 9969003, 19938006]

約数ペア:

[(1, 19938006), (2, 9969003), (3, 6646002), (6, 3323001), (9, 2215334), (11, 1812546), (18, 1107667), (22, 906273), (33, 604182), (66, 302091), (99, 201394), (101, 197406), (198, 100697), (202, 98703), (303, 65802), (606, 32901), (909, 21934), (997, 19998), (1111, 17946), (1818, 10967), (1994, 9999), (2222, 8973), (2991, 6666), (3333, 5982)]