21019695

素因数分解:

$3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{12401}}^1$

素因数の和:12522

約数の個数: 16

約数和(自身を含む): 33931872

約数和(自身を除く): 12912177

約数列:

[1, 3, 5, 15, 113, 339, 565, 1695, 12401, 37203, 62005, 186015, 1401313, 4203939, 7006565, 21019695]

約数ペア:

[(1, 21019695), (3, 7006565), (5, 4203939), (15, 1401313), (113, 186015), (339, 62005), (565, 37203), (1695, 12401)]