656019

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:121

約数の個数: 40

約数和(自身を含む): 1219680

約数和(自身を除く): 563661

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 89, 91, 117, 189, 267, 273, 351, 567, 623, 801, 819, 1053, 1157, 1869, 2403, 2457, 3471, 5607, 7209, 7371, 8099, 10413, 16821, 24297, 31239, 50463, 72891, 93717, 218673, 656019]

約数ペア:

[(1, 656019), (3, 218673), (7, 93717), (9, 72891), (13, 50463), (21, 31239), (27, 24297), (39, 16821), (63, 10413), (81, 8099), (89, 7371), (91, 7209), (117, 5607), (189, 3471), (267, 2457), (273, 2403), (351, 1869), (567, 1157), (623, 1053), (801, 819)]