19347205

素因数分解:

$5^1\times {\mathrm{29}}^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:213

約数の個数: 24

約数和(自身を含む): 24833952

約数和(自身を除く): 5486747

約数列:

[1, 5, 29, 43, 107, 145, 215, 535, 841, 1247, 3103, 4205, 4601, 6235, 15515, 23005, 36163, 89987, 133429, 180815, 449935, 667145, 3869441, 19347205]

約数ペア:

[(1, 19347205), (5, 3869441), (29, 667145), (43, 449935), (107, 180815), (145, 133429), (215, 89987), (535, 36163), (841, 23005), (1247, 15515), (3103, 6235), (4205, 4601)]