20649065

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{1163}}^1$

素因数の和:1288

約数の個数: 16

約数和(自身を含む): 25645248

約数和(自身を除く): 4996183

約数列:

[1, 5, 53, 67, 265, 335, 1163, 3551, 5815, 17755, 61639, 77921, 308195, 389605, 4129813, 20649065]

約数ペア:

[(1, 20649065), (5, 4129813), (53, 389605), (67, 308195), (265, 77921), (335, 61639), (1163, 17755), (3551, 5815)]