20007492477

素因数分解:

$3^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{8537}}^1$

素因数の和:8810

約数の個数: 48

約数和(自身を含む): 31535956800

約数和(自身を除く): 11528464323

約数列:

[1, 3, 7, 21, 49, 107, 147, 149, 321, 447, 749, 1043, 2247, 3129, 5243, 7301, 8537, 15729, 15943, 21903, 25611, 47829, 59759, 111601, 179277, 334803, 418313, 781207, 913459, 1254939, 1272013, 2343621, 2740377, 3816039, 6394213, 8904091, 19182639, 26712273, 44759491, 62328637, 134278473, 136105391, 186985911, 408316173, 952737737, 2858213211, 6669164159, 20007492477]

約数ペア:

[(1, 20007492477), (3, 6669164159), (7, 2858213211), (21, 952737737), (49, 408316173), (107, 186985911), (147, 136105391), (149, 134278473), (321, 62328637), (447, 44759491), (749, 26712273), (1043, 19182639), (2247, 8904091), (3129, 6394213), (5243, 3816039), (7301, 2740377), (8537, 2343621), (15729, 1272013), (15943, 1254939), (21903, 913459), (25611, 781207), (47829, 418313), (59759, 334803), (111601, 179277)]