28067193

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 51172992

約数和(自身を除く): 23105799

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 101, 231, 303, 401, 693, 707, 909, 1111, 1203, 2121, 2807, 3333, 3609, 4411, 6363, 7777, 8421, 9999, 13233, 23331, 25263, 30877, 39699, 40501, 69993, 92631, 121503, 277893, 283507, 364509, 445511, 850521, 1336533, 2551563, 3118577, 4009599, 9355731, 28067193]

約数ペア:

[(1, 28067193), (3, 9355731), (7, 4009599), (9, 3118577), (11, 2551563), (21, 1336533), (33, 850521), (63, 445511), (77, 364509), (99, 283507), (101, 277893), (231, 121503), (303, 92631), (401, 69993), (693, 40501), (707, 39699), (909, 30877), (1111, 25263), (1203, 23331), (2121, 13233), (2807, 9999), (3333, 8421), (3609, 7777), (4411, 6363)]