128332281

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{17921}}^1$

素因数の和:17973

約数の個数: 32

約数和(自身を含む): 220225536

約数和(自身を除く): 91893255

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 217, 231, 341, 651, 1023, 2387, 7161, 17921, 53763, 125447, 197131, 376341, 555551, 591393, 1379917, 1666653, 3888857, 4139751, 6111061, 11666571, 18333183, 42777427, 128332281]

約数ペア:

[(1, 128332281), (3, 42777427), (7, 18333183), (11, 11666571), (21, 6111061), (31, 4139751), (33, 3888857), (77, 1666653), (93, 1379917), (217, 591393), (231, 555551), (341, 376341), (651, 197131), (1023, 125447), (2387, 53763), (7161, 17921)]