21151275

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{14843}}^1$

素因数の和:14875

約数の個数: 24

約数和(自身を含む): 36813120

約数和(自身を除く): 15661845

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 14843, 44529, 74215, 222645, 282017, 371075, 846051, 1113225, 1410085, 4230255, 7050425, 21151275]

約数ペア:

[(1, 21151275), (3, 7050425), (5, 4230255), (15, 1410085), (19, 1113225), (25, 846051), (57, 371075), (75, 282017), (95, 222645), (285, 74215), (475, 44529), (1425, 14843)]