21430017

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5077}}^1$

素因数の和:5157

約数の個数: 24

約数和(自身を含む): 35911616

約数和(自身を除く): 14481599

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 5077, 15231, 35539, 45693, 106617, 319851, 340159, 1020477, 2381113, 3061431, 7143339, 21430017]

約数ペア:

[(1, 21430017), (3, 7143339), (7, 3061431), (9, 2381113), (21, 1020477), (63, 340159), (67, 319851), (201, 106617), (469, 45693), (603, 35539), (1407, 15231), (4221, 5077)]