21455630

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43787}}^1$

素因数の和:43808

約数の個数: 24

約数和(自身を含む): 44926488

約数和(自身を除く): 23470858

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 43787, 87574, 218935, 306509, 437870, 613018, 1532545, 2145563, 3065090, 4291126, 10727815, 21455630]

約数ペア:

[(1, 21455630), (2, 10727815), (5, 4291126), (7, 3065090), (10, 2145563), (14, 1532545), (35, 613018), (49, 437870), (70, 306509), (98, 218935), (245, 87574), (490, 43787)]