21153441

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 31334400

約数和(自身を除く): 10180959

約数列:

[1, 3, 19, 29, 57, 67, 87, 191, 201, 551, 573, 1273, 1653, 1943, 3629, 3819, 5539, 5829, 10887, 12797, 16617, 36917, 38391, 105241, 110751, 243143, 315723, 371113, 729429, 1113339, 7051147, 21153441]

約数ペア:

[(1, 21153441), (3, 7051147), (19, 1113339), (29, 729429), (57, 371113), (67, 315723), (87, 243143), (191, 110751), (201, 105241), (551, 38391), (573, 36917), (1273, 16617), (1653, 12797), (1943, 10887), (3629, 5829), (3819, 5539)]