19001979

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{827}}^1$

素因数の和:896

約数の個数: 32

約数和(自身を含む): 30205440

約数和(自身を除く): 11203461

約数列:

[1, 3, 9, 23, 27, 37, 69, 111, 207, 333, 621, 827, 851, 999, 2481, 2553, 7443, 7659, 19021, 22329, 22977, 30599, 57063, 91797, 171189, 275391, 513567, 703777, 826173, 2111331, 6333993, 19001979]

約数ペア:

[(1, 19001979), (3, 6333993), (9, 2111331), (23, 826173), (27, 703777), (37, 513567), (69, 275391), (111, 171189), (207, 91797), (333, 57063), (621, 30599), (827, 22977), (851, 22329), (999, 19021), (2481, 7659), (2553, 7443)]