219967083

素因数分解:

$3^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2791}}^1$

素因数の和:2949

約数の個数: 40

約数和(自身を含む): 378371840

約数和(自身を除く): 158404757

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 139, 189, 417, 567, 973, 1251, 2791, 2919, 3753, 8373, 8757, 11259, 19537, 25119, 26271, 58611, 75357, 78813, 175833, 226071, 387949, 527499, 1163847, 1582497, 2715643, 3491541, 8146929, 10474623, 24440787, 31423869, 73322361, 219967083]

約数ペア:

[(1, 219967083), (3, 73322361), (7, 31423869), (9, 24440787), (21, 10474623), (27, 8146929), (63, 3491541), (81, 2715643), (139, 1582497), (189, 1163847), (417, 527499), (567, 387949), (973, 226071), (1251, 175833), (2791, 78813), (2919, 75357), (3753, 58611), (8373, 26271), (8757, 25119), (11259, 19537)]