840042021

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{593}}^1\times {\mathrm{5189}}^1$

素因数の和:5805

約数の個数: 32

約数和(自身を含む): 1381121280

約数和(自身を除く): 541079259

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 593, 1779, 4151, 5189, 7709, 12453, 15567, 23127, 36323, 53963, 67457, 108969, 161889, 202371, 472199, 1416597, 3077077, 9231231, 21539539, 40002001, 64618617, 120006003, 280014007, 840042021]

約数ペア:

[(1, 840042021), (3, 280014007), (7, 120006003), (13, 64618617), (21, 40002001), (39, 21539539), (91, 9231231), (273, 3077077), (593, 1416597), (1779, 472199), (4151, 202371), (5189, 161889), (7709, 108969), (12453, 67457), (15567, 53963), (23127, 36323)]