27981213

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{19391}}^1$

素因数の和:19444

約数の個数: 16

約数和(自身を含む): 41266176

約数和(自身を除く): 13284963

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 19391, 58173, 252083, 717467, 756249, 2152401, 9327071, 27981213]

約数ペア:

[(1, 27981213), (3, 9327071), (13, 2152401), (37, 756249), (39, 717467), (111, 252083), (481, 58173), (1443, 19391)]