20963649

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43403}}^1$

素因数の和:43436

約数の個数: 16

約数和(自身を含む): 33334272

約数和(自身を除く): 12370623

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 43403, 130209, 303821, 911463, 998269, 2994807, 6987883, 20963649]

約数ペア:

[(1, 20963649), (3, 6987883), (7, 2994807), (21, 998269), (23, 911463), (69, 303821), (161, 130209), (483, 43403)]