21915488

素因数分解:

$2^5\times 7^1\times {\mathrm{227}}^1\times {\mathrm{431}}^1$

素因数の和:675

約数の個数: 48

約数和(自身を含む): 49641984

約数和(自身を除く): 27726496

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 227, 431, 454, 862, 908, 1589, 1724, 1816, 3017, 3178, 3448, 3632, 6034, 6356, 6896, 7264, 12068, 12712, 13792, 24136, 25424, 48272, 50848, 96544, 97837, 195674, 391348, 684859, 782696, 1369718, 1565392, 2739436, 3130784, 5478872, 10957744, 21915488]

約数ペア:

[(1, 21915488), (2, 10957744), (4, 5478872), (7, 3130784), (8, 2739436), (14, 1565392), (16, 1369718), (28, 782696), (32, 684859), (56, 391348), (112, 195674), (224, 97837), (227, 96544), (431, 50848), (454, 48272), (862, 25424), (908, 24136), (1589, 13792), (1724, 12712), (1816, 12068), (3017, 7264), (3178, 6896), (3448, 6356), (3632, 6034)]