15721027329

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{173573}}^1$

素因数の和:173829

約数の個数: 32

約数和(自身を含む): 25327918080

約数和(自身を除く): 9606890751

約数列:

[1, 3, 7, 19, 21, 57, 133, 227, 399, 681, 1589, 4313, 4767, 12939, 30191, 90573, 173573, 520719, 1215011, 3297887, 3645033, 9893661, 23085209, 39401071, 69255627, 118203213, 275807497, 748620349, 827422491, 2245861047, 5240342443, 15721027329]

約数ペア:

[(1, 15721027329), (3, 5240342443), (7, 2245861047), (19, 827422491), (21, 748620349), (57, 275807497), (133, 118203213), (227, 69255627), (399, 39401071), (681, 23085209), (1589, 9893661), (4313, 3645033), (4767, 3297887), (12939, 1215011), (30191, 520719), (90573, 173573)]