18775333773

素因数分解:

$3^2\times 7^2\times {\mathrm{307}}^1\times {\mathrm{138679}}^1$

素因数の和:139006

約数の個数: 36

約数和(自身を含む): 31650659040

約数和(自身を除く): 12875325267

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 307, 441, 921, 2149, 2763, 6447, 15043, 19341, 45129, 135387, 138679, 416037, 970753, 1248111, 2912259, 6795271, 8736777, 20385813, 42574453, 61157439, 127723359, 298021171, 383170077, 894063513, 2086148197, 2682190539, 6258444591, 18775333773]

約数ペア:

[(1, 18775333773), (3, 6258444591), (7, 2682190539), (9, 2086148197), (21, 894063513), (49, 383170077), (63, 298021171), (147, 127723359), (307, 61157439), (441, 42574453), (921, 20385813), (2149, 8736777), (2763, 6795271), (6447, 2912259), (15043, 1248111), (19341, 970753), (45129, 416037), (135387, 138679)]