278144493

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{2803}}^1$

素因数の和:2945

約数の個数: 32

約数和(自身を含む): 422080512

約数和(自身を除く): 143936019

約数列:

[1, 3, 11, 31, 33, 93, 97, 291, 341, 1023, 1067, 2803, 3007, 3201, 8409, 9021, 30833, 33077, 86893, 92499, 99231, 260679, 271891, 815673, 955823, 2867469, 2990801, 8428621, 8972403, 25285863, 92714831, 278144493]

約数ペア:

[(1, 278144493), (3, 92714831), (11, 25285863), (31, 8972403), (33, 8428621), (93, 2990801), (97, 2867469), (291, 955823), (341, 815673), (1023, 271891), (1067, 260679), (2803, 99231), (3007, 92499), (3201, 86893), (8409, 33077), (9021, 30833)]