18481883

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:482

約数の個数: 16

約数和(自身を含む): 21659904

約数和(自身を除く): 3178021

約数列:

[1, 7, 67, 157, 251, 469, 1099, 1757, 10519, 16817, 39407, 73633, 117719, 275849, 2640269, 18481883]

約数ペア:

[(1, 18481883), (7, 2640269), (67, 275849), (157, 117719), (251, 73633), (469, 39407), (1099, 16817), (1757, 10519)]