19421125

素因数分解:

$5^3\times {\mathrm{251}}^1\times {\mathrm{619}}^1$

素因数の和:885

約数の個数: 16

約数和(自身を含む): 24373440

約数和(自身を除く): 4952315

約数列:

[1, 5, 25, 125, 251, 619, 1255, 3095, 6275, 15475, 31375, 77375, 155369, 776845, 3884225, 19421125]

約数ペア:

[(1, 19421125), (5, 3884225), (25, 776845), (125, 155369), (251, 77375), (619, 31375), (1255, 15475), (3095, 6275)]