21629391

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{359}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 35020800

約数和(自身を除く): 13391409

約数列:

[1, 3, 7, 19, 21, 57, 133, 151, 359, 399, 453, 1057, 1077, 2513, 2869, 3171, 6821, 7539, 8607, 20083, 20463, 47747, 54209, 60249, 143241, 162627, 379463, 1029971, 1138389, 3089913, 7209797, 21629391]

約数ペア:

[(1, 21629391), (3, 7209797), (7, 3089913), (19, 1138389), (21, 1029971), (57, 379463), (133, 162627), (151, 143241), (359, 60249), (399, 54209), (453, 47747), (1057, 20463), (1077, 20083), (2513, 8607), (2869, 7539), (3171, 6821)]