19999070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21977}}^1$

素因数の和:22004

約数の個数: 32

約数和(自身を含む): 44307648

約数和(自身を除く): 24308578

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 21977, 43954, 109885, 153839, 219770, 285701, 307678, 571402, 769195, 1428505, 1538390, 1999907, 2857010, 3999814, 9999535, 19999070]

約数ペア:

[(1, 19999070), (2, 9999535), (5, 3999814), (7, 2857010), (10, 1999907), (13, 1538390), (14, 1428505), (26, 769195), (35, 571402), (65, 307678), (70, 285701), (91, 219770), (130, 153839), (182, 109885), (455, 43954), (910, 21977)]