20804513499

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1637}}^1\times {\mathrm{6113}}^1$

素因数の和:7777

約数の個数: 64

約数和(自身を含む): 38456570880

約数和(自身を除く): 17652057381

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 1637, 2079, 4911, 6113, 11459, 14733, 18007, 18339, 34377, 42791, 44199, 54021, 55017, 67243, 103131, 126049, 128373, 162063, 165051, 201729, 309393, 378147, 385119, 470701, 486189, 605187, 1134441, 1155357, 1412103, 1815561, 3403323, 4236309, 10006981, 12708927, 30020943, 70048867, 90062829, 110076791, 210146601, 270188487, 330230373, 630439803, 770537537, 990691119, 1891319409, 2311612611, 2972073357, 6934837833, 20804513499]

約数ペア:

[(1, 20804513499), (3, 6934837833), (7, 2972073357), (9, 2311612611), (11, 1891319409), (21, 990691119), (27, 770537537), (33, 630439803), (63, 330230373), (77, 270188487), (99, 210146601), (189, 110076791), (231, 90062829), (297, 70048867), (693, 30020943), (1637, 12708927), (2079, 10006981), (4911, 4236309), (6113, 3403323), (11459, 1815561), (14733, 1412103), (18007, 1155357), (18339, 1134441), (34377, 605187), (42791, 486189), (44199, 470701), (54021, 385119), (55017, 378147), (67243, 309393), (103131, 201729), (126049, 165051), (128373, 162063)]