21318115

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{46853}}^1$

素因数の和:46878

約数の個数: 16

約数和(自身を含む): 31485888

約数和(自身を除く): 10167773

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 46853, 234265, 327971, 609089, 1639855, 3045445, 4263623, 21318115]

約数ペア:

[(1, 21318115), (5, 4263623), (7, 3045445), (13, 1639855), (35, 609089), (65, 327971), (91, 234265), (455, 46853)]