51219231

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{937}}^1$

素因数の和:1103

約数の個数: 32

約数和(自身を含む): 82844160

約数和(自身を除く): 31624929

約数列:

[1, 3, 7, 19, 21, 57, 133, 137, 399, 411, 937, 959, 2603, 2811, 2877, 6559, 7809, 17803, 18221, 19677, 53409, 54663, 124621, 128369, 373863, 385107, 898583, 2439011, 2695749, 7317033, 17073077, 51219231]

約数ペア:

[(1, 51219231), (3, 17073077), (7, 7317033), (19, 2695749), (21, 2439011), (57, 898583), (133, 385107), (137, 373863), (399, 128369), (411, 124621), (937, 54663), (959, 53409), (2603, 19677), (2811, 18221), (2877, 17803), (6559, 7809)]