19778076

素因数分解:

$2^2\times 3^2\times {\mathrm{549391}}^1$

素因数の和:549401

約数の個数: 18

約数和(自身を含む): 49994672

約数和(自身を除く): 30216596

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 549391, 1098782, 1648173, 2197564, 3296346, 4944519, 6592692, 9889038, 19778076]

約数ペア:

[(1, 19778076), (2, 9889038), (3, 6592692), (4, 4944519), (6, 3296346), (9, 2197564), (12, 1648173), (18, 1098782), (36, 549391)]