4027191

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:191

約数の個数: 32

約数和(自身を含む): 6478848

約数和(自身を除く): 2451657

約数列:

[1, 3, 7, 21, 37, 71, 73, 111, 213, 219, 259, 497, 511, 777, 1491, 1533, 2627, 2701, 5183, 7881, 8103, 15549, 18389, 18907, 36281, 55167, 56721, 108843, 191771, 575313, 1342397, 4027191]

約数ペア:

[(1, 4027191), (3, 1342397), (7, 575313), (21, 191771), (37, 108843), (71, 56721), (73, 55167), (111, 36281), (213, 18907), (219, 18389), (259, 15549), (497, 8103), (511, 7881), (777, 5183), (1491, 2701), (1533, 2627)]