16399761

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{3847}}^1$

素因数の和:3893

約数の個数: 24

約数和(自身を含む): 26320320

約数和(自身を除く): 9920559

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 609, 1421, 3847, 4263, 11541, 26929, 80787, 111563, 188503, 334689, 565509, 780941, 2342823, 5466587, 16399761]

約数ペア:

[(1, 16399761), (3, 5466587), (7, 2342823), (21, 780941), (29, 565509), (49, 334689), (87, 188503), (147, 111563), (203, 80787), (609, 26929), (1421, 11541), (3847, 4263)]