18923655

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{29339}}^1$

素因数の和:29390

約数の個数: 16

約数和(自身を含む): 30983040

約数和(自身を除く): 12059385

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 29339, 88017, 146695, 440085, 1261577, 3784731, 6307885, 18923655]

約数ペア:

[(1, 18923655), (3, 6307885), (5, 3784731), (15, 1261577), (43, 440085), (129, 146695), (215, 88017), (645, 29339)]