21190995

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{67273}}^1$

素因数の和:67291

約数の個数: 24

約数和(自身を含む): 41978976

約数和(自身を除く): 20787981

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 67273, 201819, 336365, 470911, 605457, 1009095, 1412733, 2354555, 3027285, 4238199, 7063665, 21190995]

約数ペア:

[(1, 21190995), (3, 7063665), (5, 4238199), (7, 3027285), (9, 2354555), (15, 1412733), (21, 1009095), (35, 605457), (45, 470911), (63, 336365), (105, 201819), (315, 67273)]