21403284

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{3803}}^1$

素因数の和:3884

約数の個数: 48

約数和(自身を含む): 57942528

約数和(自身を除く): 36539244

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 67, 84, 134, 201, 268, 402, 469, 804, 938, 1407, 1876, 2814, 3803, 5628, 7606, 11409, 15212, 22818, 26621, 45636, 53242, 79863, 106484, 159726, 254801, 319452, 509602, 764403, 1019204, 1528806, 1783607, 3057612, 3567214, 5350821, 7134428, 10701642, 21403284]

約数ペア:

[(1, 21403284), (2, 10701642), (3, 7134428), (4, 5350821), (6, 3567214), (7, 3057612), (12, 1783607), (14, 1528806), (21, 1019204), (28, 764403), (42, 509602), (67, 319452), (84, 254801), (134, 159726), (201, 106484), (268, 79863), (402, 53242), (469, 45636), (804, 26621), (938, 22818), (1407, 15212), (1876, 11409), (2814, 7606), (3803, 5628)]