31991408

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{68947}}^1$

素因数の和:68984

約数の個数: 20

約数和(自身を含む): 64121640

約数和(自身を除く): 32130232

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 68947, 137894, 275788, 551576, 1103152, 1999463, 3998926, 7997852, 15995704, 31991408]

約数ペア:

[(1, 31991408), (2, 15995704), (4, 7997852), (8, 3998926), (16, 1999463), (29, 1103152), (58, 551576), (116, 275788), (232, 137894), (464, 68947)]