18991644

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2113}}^1$

素因数の和:2234

約数の個数: 48

約数和(自身を含む): 51141888

約数和(自身を除く): 32150244

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 107, 214, 321, 428, 642, 749, 1284, 1498, 2113, 2247, 2996, 4226, 4494, 6339, 8452, 8988, 12678, 14791, 25356, 29582, 44373, 59164, 88746, 177492, 226091, 452182, 678273, 904364, 1356546, 1582637, 2713092, 3165274, 4747911, 6330548, 9495822, 18991644]

約数ペア:

[(1, 18991644), (2, 9495822), (3, 6330548), (4, 4747911), (6, 3165274), (7, 2713092), (12, 1582637), (14, 1356546), (21, 904364), (28, 678273), (42, 452182), (84, 226091), (107, 177492), (214, 88746), (321, 59164), (428, 44373), (642, 29582), (749, 25356), (1284, 14791), (1498, 12678), (2113, 8988), (2247, 8452), (2996, 6339), (4226, 4494)]