20078803479

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{6047}}^1$

素因数の和:6276

約数の個数: 64

約数和(自身を含む): 33108590592

約数和(自身を除く): 13029787113

約数列:

[1, 3, 7, 17, 21, 51, 71, 119, 131, 213, 357, 393, 497, 917, 1207, 1491, 2227, 2751, 3621, 6047, 6681, 8449, 9301, 15589, 18141, 25347, 27903, 42329, 46767, 65107, 102799, 126987, 158117, 195321, 308397, 429337, 474351, 719593, 792157, 1106819, 1288011, 2158779, 2376471, 3005359, 3320457, 5545099, 7298729, 9016077, 13466669, 16635297, 21896187, 40400007, 51091103, 56243147, 94266683, 153273309, 168729441, 282800049, 393702029, 956133499, 1181106087, 2868400497, 6692934493, 20078803479]

約数ペア:

[(1, 20078803479), (3, 6692934493), (7, 2868400497), (17, 1181106087), (21, 956133499), (51, 393702029), (71, 282800049), (119, 168729441), (131, 153273309), (213, 94266683), (357, 56243147), (393, 51091103), (497, 40400007), (917, 21896187), (1207, 16635297), (1491, 13466669), (2227, 9016077), (2751, 7298729), (3621, 5545099), (6047, 3320457), (6681, 3005359), (8449, 2376471), (9301, 2158779), (15589, 1288011), (18141, 1106819), (25347, 792157), (27903, 719593), (42329, 474351), (46767, 429337), (65107, 308397), (102799, 195321), (126987, 158117)]