19915490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{284507}}^1$

素因数の和:284521

約数の個数: 16

約数和(自身を含む): 40969152

約数和(自身を除く): 21053662

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 284507, 569014, 1422535, 1991549, 2845070, 3983098, 9957745, 19915490]

約数ペア:

[(1, 19915490), (2, 9957745), (5, 3983098), (7, 2845070), (10, 1991549), (14, 1422535), (35, 569014), (70, 284507)]