216737241

素因数分解:

$3^1\times 7^3\times {\mathrm{347}}^1\times {\mathrm{607}}^1$

素因数の和:978

約数の個数: 32

約数和(自身を含む): 338534400

約数和(自身を除く): 121797159

約数列:

[1, 3, 7, 21, 49, 147, 343, 347, 607, 1029, 1041, 1821, 2429, 4249, 7287, 12747, 17003, 29743, 51009, 89229, 119021, 208201, 210629, 357063, 624603, 631887, 1474403, 4423209, 10320821, 30962463, 72245747, 216737241]

約数ペア:

[(1, 216737241), (3, 72245747), (7, 30962463), (21, 10320821), (49, 4423209), (147, 1474403), (343, 631887), (347, 624603), (607, 357063), (1029, 210629), (1041, 208201), (1821, 119021), (2429, 89229), (4249, 51009), (7287, 29743), (12747, 17003)]