25211613

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{353}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 40780800

約数和(自身を除く): 15569187

約数列:

[1, 3, 7, 19, 21, 57, 133, 179, 353, 399, 537, 1059, 1253, 2471, 3401, 3759, 6707, 7413, 10203, 20121, 23807, 46949, 63187, 71421, 140847, 189561, 442309, 1200553, 1326927, 3601659, 8403871, 25211613]

約数ペア:

[(1, 25211613), (3, 8403871), (7, 3601659), (19, 1326927), (21, 1200553), (57, 442309), (133, 189561), (179, 140847), (353, 71421), (399, 63187), (537, 46949), (1059, 23807), (1253, 20121), (2471, 10203), (3401, 7413), (3759, 6707)]