890991283

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1\times {\mathrm{577}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 1118638080

約数和(自身を除く): 227646797

約数列:

[1, 7, 13, 71, 91, 239, 497, 577, 923, 1673, 3107, 4039, 6461, 7501, 16969, 21749, 40967, 52507, 118783, 137903, 220597, 286769, 532571, 965321, 1544179, 1792739, 3727997, 9791113, 12549173, 68537791, 127284469, 890991283]

約数ペア:

[(1, 890991283), (7, 127284469), (13, 68537791), (71, 12549173), (91, 9791113), (239, 3727997), (497, 1792739), (577, 1544179), (923, 965321), (1673, 532571), (3107, 286769), (4039, 220597), (6461, 137903), (7501, 118783), (16969, 52507), (21749, 40967)]