20623185

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{683}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 39693888

約数和(自身を除く): 19070703

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 61, 99, 165, 183, 305, 495, 549, 671, 683, 915, 2013, 2049, 2745, 3355, 3415, 6039, 6147, 7513, 10065, 10245, 22539, 30195, 30735, 37565, 41663, 67617, 112695, 124989, 208315, 338085, 374967, 458293, 624945, 1374879, 1874835, 2291465, 4124637, 6874395, 20623185]

約数ペア:

[(1, 20623185), (3, 6874395), (5, 4124637), (9, 2291465), (11, 1874835), (15, 1374879), (33, 624945), (45, 458293), (55, 374967), (61, 338085), (99, 208315), (165, 124989), (183, 112695), (305, 67617), (495, 41663), (549, 37565), (671, 30735), (683, 30195), (915, 22539), (2013, 10245), (2049, 10065), (2745, 7513), (3355, 6147), (3415, 6039)]