20803783

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2969}}^1$

素因数の和:3007

約数の個数: 24

約数和(自身を含む): 28440720

約数和(自身を除く): 7636937

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 2969, 7007, 20783, 32659, 38597, 145481, 228613, 270179, 424567, 1600291, 1891253, 2971969, 20803783]

約数ペア:

[(1, 20803783), (7, 2971969), (11, 1891253), (13, 1600291), (49, 424567), (77, 270179), (91, 228613), (143, 145481), (539, 38597), (637, 32659), (1001, 20783), (2969, 7007)]