21097323

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10607}}^1$

素因数の和:10643

約数の個数: 24

約数和(自身を含む): 34751808

約数和(自身を除く): 13654485

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 10607, 31821, 95463, 137891, 180319, 413673, 540957, 1241019, 1622871, 2344147, 7032441, 21097323]

約数ペア:

[(1, 21097323), (3, 7032441), (9, 2344147), (13, 1622871), (17, 1241019), (39, 540957), (51, 413673), (117, 180319), (153, 137891), (221, 95463), (663, 31821), (1989, 10607)]