1991236

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:423

約数の個数: 24

約数和(自身を含む): 3792600

約数和(自身を除く): 1801364

約数列:

[1, 2, 4, 13, 26, 52, 149, 257, 298, 514, 596, 1028, 1937, 3341, 3874, 6682, 7748, 13364, 38293, 76586, 153172, 497809, 995618, 1991236]

約数ペア:

[(1, 1991236), (2, 995618), (4, 497809), (13, 153172), (26, 76586), (52, 38293), (149, 13364), (257, 7748), (298, 6682), (514, 3874), (596, 3341), (1028, 1937)]