31268783

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 40330752

約数和(自身を除く): 9061969

約数列:

[1, 7, 13, 43, 61, 91, 131, 301, 427, 559, 793, 917, 1703, 2623, 3913, 5551, 5633, 7991, 11921, 18361, 34099, 39431, 55937, 73229, 103883, 238693, 343613, 512603, 727181, 2405291, 4466969, 31268783]

約数ペア:

[(1, 31268783), (7, 4466969), (13, 2405291), (43, 727181), (61, 512603), (91, 343613), (131, 238693), (301, 103883), (427, 73229), (559, 55937), (793, 39431), (917, 34099), (1703, 18361), (2623, 11921), (3913, 7991), (5551, 5633)]