19491290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21419}}^1$

素因数の和:21446

約数の個数: 32

約数和(自身を含む): 43182720

約数和(自身を除く): 23691430

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 21419, 42838, 107095, 149933, 214190, 278447, 299866, 556894, 749665, 1392235, 1499330, 1949129, 2784470, 3898258, 9745645, 19491290]

約数ペア:

[(1, 19491290), (2, 9745645), (5, 3898258), (7, 2784470), (10, 1949129), (13, 1499330), (14, 1392235), (26, 749665), (35, 556894), (65, 299866), (70, 278447), (91, 214190), (130, 149933), (182, 107095), (455, 42838), (910, 21419)]