21989478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{16889}}^1$

素因数の和:16932

約数の個数: 32

約数和(自身を含む): 51886080

約数和(自身を除く): 29896602

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 93, 186, 217, 434, 651, 1302, 16889, 33778, 50667, 101334, 118223, 236446, 354669, 523559, 709338, 1047118, 1570677, 3141354, 3664913, 7329826, 10994739, 21989478]

約数ペア:

[(1, 21989478), (2, 10994739), (3, 7329826), (6, 3664913), (7, 3141354), (14, 1570677), (21, 1047118), (31, 709338), (42, 523559), (62, 354669), (93, 236446), (186, 118223), (217, 101334), (434, 50667), (651, 33778), (1302, 16889)]