31051905

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 51166080

約数和(自身を除く): 20114175

約数列:

[1, 3, 5, 15, 53, 139, 159, 265, 281, 417, 695, 795, 843, 1405, 2085, 4215, 7367, 14893, 22101, 36835, 39059, 44679, 74465, 110505, 117177, 195295, 223395, 585885, 2070127, 6210381, 10350635, 31051905]

約数ペア:

[(1, 31051905), (3, 10350635), (5, 6210381), (15, 2070127), (53, 585885), (139, 223395), (159, 195295), (265, 117177), (281, 110505), (417, 74465), (695, 44679), (795, 39059), (843, 36835), (1405, 22101), (2085, 14893), (4215, 7367)]