643519921

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{953}}^1$

素因数の和:1161

約数の個数: 32

約数和(自身を含む): 781394688

約数和(自身を除く): 137874767

約数列:

[1, 11, 17, 23, 157, 187, 253, 391, 953, 1727, 2669, 3611, 4301, 10483, 16201, 21919, 29359, 39721, 61387, 149621, 178211, 241109, 372623, 675257, 1645831, 2543557, 3441283, 4098853, 27979127, 37854113, 58501811, 643519921]

約数ペア:

[(1, 643519921), (11, 58501811), (17, 37854113), (23, 27979127), (157, 4098853), (187, 3441283), (253, 2543557), (391, 1645831), (953, 675257), (1727, 372623), (2669, 241109), (3611, 178211), (4301, 149621), (10483, 61387), (16201, 39721), (21919, 29359)]