211055439

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{1723}}^1$

素因数の和:2059

約数の個数: 32

約数和(自身を含む): 339834880

約数和(自身を除く): 128779441

約数列:

[1, 3, 7, 19, 21, 57, 133, 307, 399, 921, 1723, 2149, 5169, 5833, 6447, 12061, 17499, 32737, 36183, 40831, 98211, 122493, 229159, 528961, 687477, 1586883, 3702727, 10050259, 11108181, 30150777, 70351813, 211055439]

約数ペア:

[(1, 211055439), (3, 70351813), (7, 30150777), (19, 11108181), (21, 10050259), (57, 3702727), (133, 1586883), (307, 687477), (399, 528961), (921, 229159), (1723, 122493), (2149, 98211), (5169, 40831), (5833, 36183), (6447, 32737), (12061, 17499)]