20303871

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 32636928

約数和(自身を除く): 12333057

約数列:

[1, 3, 7, 21, 23, 69, 127, 161, 331, 381, 483, 889, 993, 2317, 2667, 2921, 6951, 7613, 8763, 20447, 22839, 42037, 53291, 61341, 126111, 159873, 294259, 882777, 966851, 2900553, 6767957, 20303871]

約数ペア:

[(1, 20303871), (3, 6767957), (7, 2900553), (21, 966851), (23, 882777), (69, 294259), (127, 159873), (161, 126111), (331, 61341), (381, 53291), (483, 42037), (889, 22839), (993, 20447), (2317, 8763), (2667, 7613), (2921, 6951)]