15220881

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 25683840

約数和(自身を除く): 10462959

約数列:

[1, 3, 9, 13, 19, 39, 41, 57, 117, 123, 167, 171, 247, 369, 501, 533, 741, 779, 1503, 1599, 2171, 2223, 2337, 3173, 4797, 6513, 6847, 7011, 9519, 10127, 19539, 20541, 28557, 30381, 41249, 61623, 89011, 91143, 123747, 130093, 267033, 371241, 390279, 801099, 1170837, 1691209, 5073627, 15220881]

約数ペア:

[(1, 15220881), (3, 5073627), (9, 1691209), (13, 1170837), (19, 801099), (39, 390279), (41, 371241), (57, 267033), (117, 130093), (123, 123747), (167, 91143), (171, 89011), (247, 61623), (369, 41249), (501, 30381), (533, 28557), (741, 20541), (779, 19539), (1503, 10127), (1599, 9519), (2171, 7011), (2223, 6847), (2337, 6513), (3173, 4797)]