21180075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{40343}}^1$

素因数の和:40363

約数の個数: 24

約数和(自身を含む): 40021248

約数和(自身を除く): 18841173

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 40343, 121029, 201715, 282401, 605145, 847203, 1008575, 1412005, 3025725, 4236015, 7060025, 21180075]

約数ペア:

[(1, 21180075), (3, 7060025), (5, 4236015), (7, 3025725), (15, 1412005), (21, 1008575), (25, 847203), (35, 605145), (75, 282401), (105, 201715), (175, 121029), (525, 40343)]