20516535

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2063}}^1$

素因数の和:2104

約数の個数: 48

約数和(自身を含む): 40569984

約数和(自身を除く): 20053449

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1989, 2063, 3315, 6189, 9945, 10315, 18567, 26819, 30945, 35071, 80457, 92835, 105213, 134095, 175355, 241371, 315639, 402285, 455923, 526065, 1206855, 1367769, 1578195, 2279615, 4103307, 6838845, 20516535]

約数ペア:

[(1, 20516535), (3, 6838845), (5, 4103307), (9, 2279615), (13, 1578195), (15, 1367769), (17, 1206855), (39, 526065), (45, 455923), (51, 402285), (65, 315639), (85, 241371), (117, 175355), (153, 134095), (195, 105213), (221, 92835), (255, 80457), (585, 35071), (663, 30945), (765, 26819), (1105, 18567), (1989, 10315), (2063, 9945), (3315, 6189)]