21002842

素因数分解:

$2^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{6277}}^1$

素因数の和:6525

約数の個数: 16

約数和(自身を含む): 36161280

約数和(自身を除く): 15158438

約数列:

[1, 2, 7, 14, 239, 478, 1673, 3346, 6277, 12554, 43939, 87878, 1500203, 3000406, 10501421, 21002842]

約数ペア:

[(1, 21002842), (2, 10501421), (7, 3000406), (14, 1500203), (239, 87878), (478, 43939), (1673, 12554), (3346, 6277)]