21861315

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{69401}}^1$

素因数の和:69419

約数の個数: 24

約数和(自身を含む): 43306848

約数和(自身を除く): 21445533

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 69401, 208203, 347005, 485807, 624609, 1041015, 1457421, 2429035, 3123045, 4372263, 7287105, 21861315]

約数ペア:

[(1, 21861315), (3, 7287105), (5, 4372263), (7, 3123045), (9, 2429035), (15, 1457421), (21, 1041015), (35, 624609), (45, 485807), (63, 347005), (105, 208203), (315, 69401)]