7921287

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1$

素因数の和:348

約数の個数: 32

約数和(自身を含む): 12960000

約数和(自身を除く): 5038713

約数列:

[1, 3, 9, 11, 27, 33, 99, 149, 179, 297, 447, 537, 1341, 1611, 1639, 1969, 4023, 4833, 4917, 5907, 14751, 17721, 26671, 44253, 53163, 80013, 240039, 293381, 720117, 880143, 2640429, 7921287]

約数ペア:

[(1, 7921287), (3, 2640429), (9, 880143), (11, 720117), (27, 293381), (33, 240039), (99, 80013), (149, 53163), (179, 44253), (297, 26671), (447, 17721), (537, 14751), (1341, 5907), (1611, 4917), (1639, 4833), (1969, 4023)]