402971387

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{677}}^1$

素因数の和:939

約数の個数: 32

約数和(自身を含む): 515149824

約数和(自身を除く): 112178437

約数列:

[1, 7, 13, 31, 91, 211, 217, 403, 677, 1477, 2743, 2821, 4739, 6541, 8801, 19201, 20987, 45787, 61607, 85033, 142847, 146909, 272831, 595231, 999929, 1857011, 1909817, 4428257, 12999077, 30997799, 57567341, 402971387]

約数ペア:

[(1, 402971387), (7, 57567341), (13, 30997799), (31, 12999077), (91, 4428257), (211, 1909817), (217, 1857011), (403, 999929), (677, 595231), (1477, 272831), (2743, 146909), (2821, 142847), (4739, 85033), (6541, 61607), (8801, 45787), (19201, 20987)]