397394865

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{1261571}}^1$

素因数の和:1261589

約数の個数: 24

約数和(自身を含む): 787220928

約数和(自身を除く): 389826063

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 1261571, 3784713, 6307855, 8830997, 11354139, 18923565, 26492991, 44154985, 56770695, 79478973, 132464955, 397394865]

約数ペア:

[(1, 397394865), (3, 132464955), (5, 79478973), (7, 56770695), (9, 44154985), (15, 26492991), (21, 18923565), (35, 11354139), (45, 8830997), (63, 6307855), (105, 3784713), (315, 1261571)]