207830721

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{8539}}^1$

素因数の和:8629

約数の個数: 32

約数和(自身を含む): 338867200

約数和(自身を除く): 131036479

約数列:

[1, 3, 7, 19, 21, 57, 61, 133, 183, 399, 427, 1159, 1281, 3477, 8113, 8539, 24339, 25617, 59773, 162241, 179319, 486723, 520879, 1135687, 1562637, 3407061, 3646153, 9896701, 10938459, 29690103, 69276907, 207830721]

約数ペア:

[(1, 207830721), (3, 69276907), (7, 29690103), (19, 10938459), (21, 9896701), (57, 3646153), (61, 3407061), (133, 1562637), (183, 1135687), (399, 520879), (427, 486723), (1159, 179319), (1281, 162241), (3477, 59773), (8113, 25617), (8539, 24339)]