19905388

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{6091}}^1$

素因数の和:6157

約数の個数: 24

約数和(自身を含む): 37526720

約数和(自身を除く): 17621332

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 6091, 12182, 24364, 115729, 231458, 261913, 462916, 523826, 1047652, 4976347, 9952694, 19905388]

約数ペア:

[(1, 19905388), (2, 9952694), (4, 4976347), (19, 1047652), (38, 523826), (43, 462916), (76, 261913), (86, 231458), (172, 115729), (817, 24364), (1634, 12182), (3268, 6091)]