278269827

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{991}}^1$

素因数の和:1199

約数の個数: 32

約数和(自身を含む): 414449664

約数和(自身を除く): 136179837

約数列:

[1, 3, 11, 33, 67, 127, 201, 381, 737, 991, 1397, 2211, 2973, 4191, 8509, 10901, 25527, 32703, 66397, 93599, 125857, 199191, 280797, 377571, 730367, 1384427, 2191101, 4153281, 8432419, 25297257, 92756609, 278269827]

約数ペア:

[(1, 278269827), (3, 92756609), (11, 25297257), (33, 8432419), (67, 4153281), (127, 2191101), (201, 1384427), (381, 730367), (737, 377571), (991, 280797), (1397, 199191), (2211, 125857), (2973, 93599), (4191, 66397), (8509, 32703), (10901, 25527)]