20985468

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{249827}}^1$

素因数の和:249841

約数の個数: 24

約数和(自身を含む): 55961472

約数和(自身を除く): 34976004

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 249827, 499654, 749481, 999308, 1498962, 1748789, 2997924, 3497578, 5246367, 6995156, 10492734, 20985468]

約数ペア:

[(1, 20985468), (2, 10492734), (3, 6995156), (4, 5246367), (6, 3497578), (7, 2997924), (12, 1748789), (14, 1498962), (21, 999308), (28, 749481), (42, 499654), (84, 249827)]