31215816

素因数分解:

$2^3\times 3^2\times {\mathrm{491}}^1\times {\mathrm{883}}^1$

素因数の和:1386

約数の個数: 48

約数和(自身を含む): 84810960

約数和(自身を除く): 53595144

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 491, 883, 982, 1473, 1766, 1964, 2649, 2946, 3532, 3928, 4419, 5298, 5892, 7064, 7947, 8838, 10596, 11784, 15894, 17676, 21192, 31788, 35352, 63576, 433553, 867106, 1300659, 1734212, 2601318, 3468424, 3901977, 5202636, 7803954, 10405272, 15607908, 31215816]

約数ペア:

[(1, 31215816), (2, 15607908), (3, 10405272), (4, 7803954), (6, 5202636), (8, 3901977), (9, 3468424), (12, 2601318), (18, 1734212), (24, 1300659), (36, 867106), (72, 433553), (491, 63576), (883, 35352), (982, 31788), (1473, 21192), (1766, 17676), (1964, 15894), (2649, 11784), (2946, 10596), (3532, 8838), (3928, 7947), (4419, 7064), (5298, 5892)]