19981878

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{475759}}^1$

素因数の和:475771

約数の個数: 16

約数和(自身を含む): 45672960

約数和(自身を除く): 25691082

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 475759, 951518, 1427277, 2854554, 3330313, 6660626, 9990939, 19981878]

約数ペア:

[(1, 19981878), (2, 9990939), (3, 6660626), (6, 3330313), (7, 2854554), (14, 1427277), (21, 951518), (42, 475759)]