20951388

素因数分解:

$2^2\times 3^2\times {\mathrm{581983}}^1$

素因数の和:581993

約数の個数: 18

約数和(自身を含む): 52960544

約数和(自身を除く): 32009156

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 581983, 1163966, 1745949, 2327932, 3491898, 5237847, 6983796, 10475694, 20951388]

約数ペア:

[(1, 20951388), (2, 10475694), (3, 6983796), (4, 5237847), (6, 3491898), (9, 2327932), (12, 1745949), (18, 1163966), (36, 581983)]