81564876

素因数分解:

$2^2\times 3^2\times {\mathrm{103}}^1\times {\mathrm{21997}}^1$

素因数の和:22110

約数の個数: 36

約数和(自身を含む): 208189072

約数和(自身を除く): 126624196

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 103, 206, 309, 412, 618, 927, 1236, 1854, 3708, 21997, 43994, 65991, 87988, 131982, 197973, 263964, 395946, 791892, 2265691, 4531382, 6797073, 9062764, 13594146, 20391219, 27188292, 40782438, 81564876]

約数ペア:

[(1, 81564876), (2, 40782438), (3, 27188292), (4, 20391219), (6, 13594146), (9, 9062764), (12, 6797073), (18, 4531382), (36, 2265691), (103, 791892), (206, 395946), (309, 263964), (412, 197973), (618, 131982), (927, 87988), (1236, 65991), (1854, 43994), (3708, 21997)]