15981615

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1607}}^1$

素因数の和:1648

約数の個数: 48

約数和(自身を含む): 31606848

約数和(自身を除く): 15625233

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1607, 1989, 3315, 4821, 8035, 9945, 14463, 20891, 24105, 27319, 62673, 72315, 81957, 104455, 136595, 188019, 245871, 313365, 355147, 409785, 940095, 1065441, 1229355, 1775735, 3196323, 5327205, 15981615]

約数ペア:

[(1, 15981615), (3, 5327205), (5, 3196323), (9, 1775735), (13, 1229355), (15, 1065441), (17, 940095), (39, 409785), (45, 355147), (51, 313365), (65, 245871), (85, 188019), (117, 136595), (153, 104455), (195, 81957), (221, 72315), (255, 62673), (585, 27319), (663, 24105), (765, 20891), (1105, 14463), (1607, 9945), (1989, 8035), (3315, 4821)]