18772957

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{439}}^1$

素因数の和:636

約数の個数: 16

約数和(自身を含む): 22176000

約数和(自身を除く): 3403043

約数列:

[1, 7, 41, 149, 287, 439, 1043, 3073, 6109, 17999, 42763, 65411, 125993, 457877, 2681851, 18772957]

約数ペア:

[(1, 18772957), (7, 2681851), (41, 457877), (149, 125993), (287, 65411), (439, 42763), (1043, 17999), (3073, 6109)]