19912798

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{12781}}^1$

素因数の和:12843

約数の個数: 16

約数和(自身を含む): 32210640

約数和(自身を除く): 12297842

約数列:

[1, 2, 19, 38, 41, 82, 779, 1558, 12781, 25562, 242839, 485678, 524021, 1048042, 9956399, 19912798]

約数ペア:

[(1, 19912798), (2, 9956399), (19, 1048042), (38, 524021), (41, 485678), (82, 242839), (779, 25562), (1558, 12781)]