21715624

素因数分解:

$2^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1787}}^1$

素因数の和:1838

約数の個数: 48

約数和(自身を含む): 48919680

約数和(自身を除く): 27204056

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 49, 56, 62, 98, 124, 196, 217, 248, 392, 434, 868, 1519, 1736, 1787, 3038, 3574, 6076, 7148, 12152, 12509, 14296, 25018, 50036, 55397, 87563, 100072, 110794, 175126, 221588, 350252, 387779, 443176, 700504, 775558, 1551116, 2714453, 3102232, 5428906, 10857812, 21715624]

約数ペア:

[(1, 21715624), (2, 10857812), (4, 5428906), (7, 3102232), (8, 2714453), (14, 1551116), (28, 775558), (31, 700504), (49, 443176), (56, 387779), (62, 350252), (98, 221588), (124, 175126), (196, 110794), (217, 100072), (248, 87563), (392, 55397), (434, 50036), (868, 25018), (1519, 14296), (1736, 12509), (1787, 12152), (3038, 7148), (3574, 6076)]