21082542

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8719}}^1$

素因数の和:8768

約数の個数: 32

約数和(自身を含む): 46878720

約数和(自身を除く): 25796178

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 8719, 17438, 26157, 52314, 113347, 226694, 270289, 340041, 540578, 680082, 810867, 1621734, 3513757, 7027514, 10541271, 21082542]

約数ペア:

[(1, 21082542), (2, 10541271), (3, 7027514), (6, 3513757), (13, 1621734), (26, 810867), (31, 680082), (39, 540578), (62, 340041), (78, 270289), (93, 226694), (186, 113347), (403, 52314), (806, 26157), (1209, 17438), (2418, 8719)]