13431145

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4217}}^1$

素因数の和:4249

約数の個数: 24

約数和(自身を含む): 20195784

約数和(自身を除く): 6764639

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 4217, 21085, 29519, 54821, 147595, 206633, 274105, 383747, 1033165, 1918735, 2686229, 13431145]

約数ペア:

[(1, 13431145), (5, 2686229), (7, 1918735), (13, 1033165), (35, 383747), (49, 274105), (65, 206633), (91, 147595), (245, 54821), (455, 29519), (637, 21085), (3185, 4217)]