19787404

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{54361}}^1$

素因数の和:54385

約数の個数: 24

約数和(自身を含む): 42619808

約数和(自身を除く): 22832404

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 54361, 108722, 217444, 380527, 706693, 761054, 1413386, 1522108, 2826772, 4946851, 9893702, 19787404]

約数ペア:

[(1, 19787404), (2, 9893702), (4, 4946851), (7, 2826772), (13, 1522108), (14, 1413386), (26, 761054), (28, 706693), (52, 380527), (91, 217444), (182, 108722), (364, 54361)]