20291208

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{449}}^1$

素因数の和:734

約数の個数: 64

約数和(自身を含む): 58320000

約数和(自身を除く): 38028792

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 269, 449, 538, 807, 898, 1076, 1347, 1614, 1796, 1883, 2152, 2694, 3143, 3228, 3592, 3766, 5388, 5649, 6286, 6456, 7532, 9429, 10776, 11298, 12572, 15064, 18858, 22596, 25144, 37716, 45192, 75432, 120781, 241562, 362343, 483124, 724686, 845467, 966248, 1449372, 1690934, 2536401, 2898744, 3381868, 5072802, 6763736, 10145604, 20291208]

約数ペア:

[(1, 20291208), (2, 10145604), (3, 6763736), (4, 5072802), (6, 3381868), (7, 2898744), (8, 2536401), (12, 1690934), (14, 1449372), (21, 966248), (24, 845467), (28, 724686), (42, 483124), (56, 362343), (84, 241562), (168, 120781), (269, 75432), (449, 45192), (538, 37716), (807, 25144), (898, 22596), (1076, 18858), (1347, 15064), (1614, 12572), (1796, 11298), (1883, 10776), (2152, 9429), (2694, 7532), (3143, 6456), (3228, 6286), (3592, 5649), (3766, 5388)]