21297535

素因数分解:

$5^1\times 7^1\times {\mathrm{467}}^1\times {\mathrm{1303}}^1$

素因数の和:1782

約数の個数: 16

約数和(自身を含む): 29293056

約数和(自身を除く): 7995521

約数列:

[1, 5, 7, 35, 467, 1303, 2335, 3269, 6515, 9121, 16345, 45605, 608501, 3042505, 4259507, 21297535]

約数ペア:

[(1, 21297535), (5, 4259507), (7, 3042505), (35, 608501), (467, 45605), (1303, 16345), (2335, 9121), (3269, 6515)]