19985293

素因数分解:

${\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:284

約数の個数: 16

約数和(自身を含む): 21275136

約数和(自身を除く): 1289843

約数列:

[1, 47, 53, 71, 113, 2491, 3337, 3763, 5311, 5989, 8023, 176861, 281483, 377081, 425219, 19985293]

約数ペア:

[(1, 19985293), (47, 425219), (53, 377081), (71, 281483), (113, 176861), (2491, 8023), (3337, 5989), (3763, 5311)]