28641897

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:370

約数の個数: 32

約数和(自身を含む): 43868160

約数和(自身を除く): 15226263

約数列:

[1, 3, 9, 27, 67, 71, 201, 213, 223, 603, 639, 669, 1809, 1917, 2007, 4757, 6021, 14271, 14941, 15833, 42813, 44823, 47499, 128439, 134469, 142497, 403407, 427491, 1060811, 3182433, 9547299, 28641897]

約数ペア:

[(1, 28641897), (3, 9547299), (9, 3182433), (27, 1060811), (67, 427491), (71, 403407), (201, 142497), (213, 134469), (223, 128439), (603, 47499), (639, 44823), (669, 42813), (1809, 15833), (1917, 14941), (2007, 14271), (4757, 6021)]