21366153

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 32832000

約数和(自身を除く): 11465847

約数列:

[1, 3, 9, 27, 47, 113, 141, 149, 339, 423, 447, 1017, 1269, 1341, 3051, 4023, 5311, 7003, 15933, 16837, 21009, 47799, 50511, 63027, 143397, 151533, 189081, 454599, 791339, 2374017, 7122051, 21366153]

約数ペア:

[(1, 21366153), (3, 7122051), (9, 2374017), (27, 791339), (47, 454599), (113, 189081), (141, 151533), (149, 143397), (339, 63027), (423, 50511), (447, 47799), (1017, 21009), (1269, 16837), (1341, 15933), (3051, 7003), (4023, 5311)]