20686972

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{929}}^1$

素因数の和:1245

約数の個数: 24

約数和(自身を含む): 38278800

約数和(自身を除く): 17591828

約数列:

[1, 2, 4, 19, 38, 76, 293, 586, 929, 1172, 1858, 3716, 5567, 11134, 17651, 22268, 35302, 70604, 272197, 544394, 1088788, 5171743, 10343486, 20686972]

約数ペア:

[(1, 20686972), (2, 10343486), (4, 5171743), (19, 1088788), (38, 544394), (76, 272197), (293, 70604), (586, 35302), (929, 22268), (1172, 17651), (1858, 11134), (3716, 5567)]