21227156951

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{179}}^1\times {\mathrm{701}}^1$

素因数の和:937

約数の個数: 64

約数和(自身を含む): 28870732800

約数和(自身を除く): 7643575849

約数列:

[1, 7, 11, 13, 77, 91, 143, 169, 179, 701, 1001, 1183, 1253, 1859, 1969, 2197, 2327, 4907, 7711, 9113, 13013, 13783, 15379, 16289, 24167, 25597, 30251, 53977, 63791, 100243, 118469, 125479, 169169, 179179, 211757, 332761, 393263, 701701, 829283, 878353, 1303159, 1380269, 1540097, 1631227, 2329327, 2752841, 4325893, 9122113, 9661883, 10780679, 11418589, 16941067, 17943497, 21205951, 30281251, 118587469, 125604479, 148441657, 233265461, 275677363, 1632858227, 1929741541, 3032450993, 21227156951]

約数ペア:

[(1, 21227156951), (7, 3032450993), (11, 1929741541), (13, 1632858227), (77, 275677363), (91, 233265461), (143, 148441657), (169, 125604479), (179, 118587469), (701, 30281251), (1001, 21205951), (1183, 17943497), (1253, 16941067), (1859, 11418589), (1969, 10780679), (2197, 9661883), (2327, 9122113), (4907, 4325893), (7711, 2752841), (9113, 2329327), (13013, 1631227), (13783, 1540097), (15379, 1380269), (16289, 1303159), (24167, 878353), (25597, 829283), (30251, 701701), (53977, 393263), (63791, 332761), (100243, 211757), (118469, 179179), (125479, 169169)]