31497156

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{20347}}^1$

素因数の和:20400

約数の個数: 36

約数和(自身を含む): 81473392

約数和(自身を除く): 49976236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 20347, 40694, 61041, 81388, 122082, 183123, 244164, 366246, 732492, 874921, 1749842, 2624763, 3499684, 5249526, 7874289, 10499052, 15748578, 31497156]

約数ペア:

[(1, 31497156), (2, 15748578), (3, 10499052), (4, 7874289), (6, 5249526), (9, 3499684), (12, 2624763), (18, 1749842), (36, 874921), (43, 732492), (86, 366246), (129, 244164), (172, 183123), (258, 122082), (387, 81388), (516, 61041), (774, 40694), (1548, 20347)]