261770327

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{281}}^1\times {\mathrm{353}}^1$

素因数の和:683

約数の個数: 32

約数和(自身を含む): 335422080

約数和(自身を除く): 73651753

約数列:

[1, 7, 13, 29, 91, 203, 281, 353, 377, 1967, 2471, 2639, 3653, 4589, 8149, 10237, 25571, 32123, 57043, 71659, 99193, 105937, 133081, 694351, 741559, 931567, 1289509, 2876597, 9026563, 20136179, 37395761, 261770327]

約数ペア:

[(1, 261770327), (7, 37395761), (13, 20136179), (29, 9026563), (91, 2876597), (203, 1289509), (281, 931567), (353, 741559), (377, 694351), (1967, 133081), (2471, 105937), (2639, 99193), (3653, 71659), (4589, 57043), (8149, 32123), (10237, 25571)]