20176985073

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^2\times {\mathrm{179}}^1\times {\mathrm{2903}}^1$

素因数の和:3178

約数の個数: 48

約数和(自身を含む): 31664286720

約数和(自身を除く): 11487301647

約数列:

[1, 3, 7, 21, 43, 129, 179, 301, 537, 903, 1253, 1849, 2903, 3759, 5547, 7697, 8709, 12943, 20321, 23091, 38829, 53879, 60963, 124829, 161637, 330971, 374487, 519637, 873803, 992913, 1558911, 2316797, 2621409, 3637459, 5367647, 6950391, 10912377, 16102941, 22344391, 37573529, 67033173, 112720587, 156410737, 469232211, 960808813, 2882426439, 6725661691, 20176985073]

約数ペア:

[(1, 20176985073), (3, 6725661691), (7, 2882426439), (21, 960808813), (43, 469232211), (129, 156410737), (179, 112720587), (301, 67033173), (537, 37573529), (903, 22344391), (1253, 16102941), (1849, 10912377), (2903, 6950391), (3759, 5367647), (5547, 3637459), (7697, 2621409), (8709, 2316797), (12943, 1558911), (20321, 992913), (23091, 873803), (38829, 519637), (53879, 374487), (60963, 330971), (124829, 161637)]