18987654

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{452087}}^1$

素因数の和:452099

約数の個数: 16

約数和(自身を含む): 43400448

約数和(自身を除く): 24412794

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 452087, 904174, 1356261, 2712522, 3164609, 6329218, 9493827, 18987654]

約数ペア:

[(1, 18987654), (2, 9493827), (3, 6329218), (6, 3164609), (7, 2712522), (14, 1356261), (21, 904174), (42, 452087)]