18380369

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:440

約数の個数: 16

約数和(自身を含む): 21490560

約数和(自身を除く): 3110191

約数列:

[1, 7, 89, 163, 181, 623, 1141, 1267, 14507, 16109, 29503, 101549, 112763, 206521, 2625767, 18380369]

約数ペア:

[(1, 18380369), (7, 2625767), (89, 206521), (163, 112763), (181, 101549), (623, 29503), (1141, 16109), (1267, 14507)]