778996827

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{673}}^1\times {\mathrm{967}}^1$

素因数の和:1672

約数の個数: 48

約数和(自身を含む): 1357058560

約数和(自身を除く): 578061733

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 673, 967, 1197, 2019, 2901, 4711, 6057, 6769, 8703, 12787, 14133, 18373, 20307, 38361, 42399, 55119, 60921, 89509, 115083, 128611, 165357, 268527, 385833, 650791, 805581, 1157499, 1952373, 4555537, 5857119, 12365029, 13666611, 37095087, 40999833, 86555203, 111285261, 259665609, 778996827]

約数ペア:

[(1, 778996827), (3, 259665609), (7, 111285261), (9, 86555203), (19, 40999833), (21, 37095087), (57, 13666611), (63, 12365029), (133, 5857119), (171, 4555537), (399, 1952373), (673, 1157499), (967, 805581), (1197, 650791), (2019, 385833), (2901, 268527), (4711, 165357), (6057, 128611), (6769, 115083), (8703, 89509), (12787, 60921), (14133, 55119), (18373, 42399), (20307, 38361)]