19709830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{1039}}^1$

素因数の和:1324

約数の個数: 32

約数和(自身を含む): 40734720

約数和(自身を除く): 21024890

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 271, 542, 1039, 1355, 1897, 2078, 2710, 3794, 5195, 7273, 9485, 10390, 14546, 18970, 36365, 72730, 281569, 563138, 1407845, 1970983, 2815690, 3941966, 9854915, 19709830]

約数ペア:

[(1, 19709830), (2, 9854915), (5, 3941966), (7, 2815690), (10, 1970983), (14, 1407845), (35, 563138), (70, 281569), (271, 72730), (542, 36365), (1039, 18970), (1355, 14546), (1897, 10390), (2078, 9485), (2710, 7273), (3794, 5195)]