27915979

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 35997696

約数和(自身を除く): 8081717

約数列:

[1, 7, 13, 47, 61, 91, 107, 329, 427, 611, 749, 793, 1391, 2867, 4277, 5029, 5551, 6527, 9737, 20069, 35203, 37271, 45689, 65377, 84851, 260897, 306769, 457639, 593957, 2147383, 3987997, 27915979]

約数ペア:

[(1, 27915979), (7, 3987997), (13, 2147383), (47, 593957), (61, 457639), (91, 306769), (107, 260897), (329, 84851), (427, 65377), (611, 45689), (749, 37271), (793, 35203), (1391, 20069), (2867, 9737), (4277, 6527), (5029, 5551)]