20261943

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 34122816

約数和(自身を除く): 13860873

約数列:

[1, 3, 9, 13, 17, 39, 51, 61, 117, 153, 167, 183, 221, 501, 549, 663, 793, 1037, 1503, 1989, 2171, 2379, 2839, 3111, 6513, 7137, 8517, 9333, 10187, 13481, 19539, 25551, 30561, 36907, 40443, 91683, 110721, 121329, 132431, 173179, 332163, 397293, 519537, 1191879, 1558611, 2251327, 6753981, 20261943]

約数ペア:

[(1, 20261943), (3, 6753981), (9, 2251327), (13, 1558611), (17, 1191879), (39, 519537), (51, 397293), (61, 332163), (117, 173179), (153, 132431), (167, 121329), (183, 110721), (221, 91683), (501, 40443), (549, 36907), (663, 30561), (793, 25551), (1037, 19539), (1503, 13481), (1989, 10187), (2171, 9333), (2379, 8517), (2839, 7137), (3111, 6513)]