21492003

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{7549}}^1$

素因数の和:7638

約数の個数: 16

約数和(自身を含む): 31287200

約数和(自身を除く): 9795197

約数列:

[1, 3, 13, 39, 73, 219, 949, 2847, 7549, 22647, 98137, 294411, 551077, 1653231, 7164001, 21492003]

約数ペア:

[(1, 21492003), (3, 7164001), (13, 1653231), (39, 551077), (73, 294411), (219, 98137), (949, 22647), (2847, 7549)]