21074810

素因数分解:

$2^1\times 5^1\times {\mathrm{1151}}^1\times {\mathrm{1831}}^1$

素因数の和:2989

約数の個数: 16

約数和(自身を含む): 37988352

約数和(自身を除く): 16913542

約数列:

[1, 2, 5, 10, 1151, 1831, 2302, 3662, 5755, 9155, 11510, 18310, 2107481, 4214962, 10537405, 21074810]

約数ペア:

[(1, 21074810), (2, 10537405), (5, 4214962), (10, 2107481), (1151, 18310), (1831, 11510), (2302, 9155), (3662, 5755)]