399532

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{751}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 842240

約数和(自身を除く): 442708

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 751, 1502, 3004, 5257, 10514, 14269, 21028, 28538, 57076, 99883, 199766, 399532]

約数ペア:

[(1, 399532), (2, 199766), (4, 99883), (7, 57076), (14, 28538), (19, 21028), (28, 14269), (38, 10514), (76, 5257), (133, 3004), (266, 1502), (532, 751)]