21274758

素因数分解:

$2^1\times 3^3\times {\mathrm{393977}}^1$

素因数の和:393988

約数の個数: 16

約数和(自身を含む): 47277360

約数和(自身を除く): 26002602

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 393977, 787954, 1181931, 2363862, 3545793, 7091586, 10637379, 21274758]

約数ペア:

[(1, 21274758), (2, 10637379), (3, 7091586), (6, 3545793), (9, 2363862), (18, 1181931), (27, 787954), (54, 393977)]