31781618

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{11939}}^1$

素因数の和:11974

約数の個数: 16

約数和(自身を含む): 52440480

約数和(自身を除く): 20658862

約数列:

[1, 2, 11, 22, 121, 242, 1331, 2662, 11939, 23878, 131329, 262658, 1444619, 2889238, 15890809, 31781618]

約数ペア:

[(1, 31781618), (2, 15890809), (11, 2889238), (22, 1444619), (121, 262658), (242, 131329), (1331, 23878), (2662, 11939)]