21502215

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{68261}}^1$

素因数の和:68279

約数の個数: 24

約数和(自身を含む): 42595488

約数和(自身を除く): 21093273

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 68261, 204783, 341305, 477827, 614349, 1023915, 1433481, 2389135, 3071745, 4300443, 7167405, 21502215]

約数ペア:

[(1, 21502215), (3, 7167405), (5, 4300443), (7, 3071745), (9, 2389135), (15, 1433481), (21, 1023915), (35, 614349), (45, 477827), (63, 341305), (105, 204783), (315, 68261)]