21239088

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{337}}^1$

素因数の和:462

約数の個数: 80

約数和(自身を含む): 59850336

約数和(自身を除く): 38611248

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 101, 104, 156, 202, 208, 303, 312, 337, 404, 606, 624, 674, 808, 1011, 1212, 1313, 1348, 1616, 2022, 2424, 2626, 2696, 3939, 4044, 4381, 4848, 5252, 5392, 7878, 8088, 8762, 10504, 13143, 15756, 16176, 17524, 21008, 26286, 31512, 34037, 35048, 52572, 63024, 68074, 70096, 102111, 105144, 136148, 204222, 210288, 272296, 408444, 442481, 544592, 816888, 884962, 1327443, 1633776, 1769924, 2654886, 3539848, 5309772, 7079696, 10619544, 21239088]

約数ペア:

[(1, 21239088), (2, 10619544), (3, 7079696), (4, 5309772), (6, 3539848), (8, 2654886), (12, 1769924), (13, 1633776), (16, 1327443), (24, 884962), (26, 816888), (39, 544592), (48, 442481), (52, 408444), (78, 272296), (101, 210288), (104, 204222), (156, 136148), (202, 105144), (208, 102111), (303, 70096), (312, 68074), (337, 63024), (404, 52572), (606, 35048), (624, 34037), (674, 31512), (808, 26286), (1011, 21008), (1212, 17524), (1313, 16176), (1348, 15756), (1616, 13143), (2022, 10504), (2424, 8762), (2626, 8088), (2696, 7878), (3939, 5392), (4044, 5252), (4381, 4848)]