20180887909

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^2\times {\mathrm{6079}}^1$

素因数の和:6481

約数の個数: 24

約数和(自身を含む): 24972846080

約数和(自身を除く): 4791958171

約数列:

[1, 7, 13, 91, 191, 1337, 2483, 6079, 17381, 36481, 42553, 79027, 255367, 474253, 553189, 1161089, 3319771, 8127623, 15094157, 105659099, 221767999, 1552375993, 2882983987, 20180887909]

約数ペア:

[(1, 20180887909), (7, 2882983987), (13, 1552375993), (91, 221767999), (191, 105659099), (1337, 15094157), (2483, 8127623), (6079, 3319771), (17381, 1161089), (36481, 553189), (42553, 474253), (79027, 255367)]