21461004040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{76646443}}^1$

素因数の和:76646461

約数の個数: 32

約数和(自身を含む): 55185439680

約数和(自身を除く): 33724435640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 76646443, 153292886, 306585772, 383232215, 536525101, 613171544, 766464430, 1073050202, 1532928860, 2146100404, 2682625505, 3065857720, 4292200808, 5365251010, 10730502020, 21461004040]

約数ペア:

[(1, 21461004040), (2, 10730502020), (4, 5365251010), (5, 4292200808), (7, 3065857720), (8, 2682625505), (10, 2146100404), (14, 1532928860), (20, 1073050202), (28, 766464430), (35, 613171544), (40, 536525101), (56, 383232215), (70, 306585772), (140, 153292886), (280, 76646443)]