28372959

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{211}}^1\times {\mathrm{223}}^1$

素因数の和:507

約数の個数: 24

約数和(自身を含む): 41979392

約数和(自身を除く): 13606433

約数列:

[1, 3, 9, 67, 201, 211, 223, 603, 633, 669, 1899, 2007, 14137, 14941, 42411, 44823, 47053, 127233, 134469, 141159, 423477, 3152551, 9457653, 28372959]

約数ペア:

[(1, 28372959), (3, 9457653), (9, 3152551), (67, 423477), (201, 141159), (211, 134469), (223, 127233), (603, 47053), (633, 44823), (669, 42411), (1899, 14941), (2007, 14137)]