31078089

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{15913}}^1$

素因数の和:15957

約数の個数: 24

約数和(自身を含む): 52961792

約数和(自身を除く): 21883703

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 15913, 47739, 111391, 143217, 334173, 493303, 1002519, 1479909, 3453121, 4439727, 10359363, 31078089]

約数ペア:

[(1, 31078089), (3, 10359363), (7, 4439727), (9, 3453121), (21, 1479909), (31, 1002519), (63, 493303), (93, 334173), (217, 143217), (279, 111391), (651, 47739), (1953, 15913)]