21457176

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{709}}^1$

素因数の和:828

約数の個数: 64

約数和(自身を含む): 58447200

約数和(自身を除く): 36990024

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 97, 104, 156, 194, 291, 312, 388, 582, 709, 776, 1164, 1261, 1418, 2127, 2328, 2522, 2836, 3783, 4254, 5044, 5672, 7566, 8508, 9217, 10088, 15132, 17016, 18434, 27651, 30264, 36868, 55302, 68773, 73736, 110604, 137546, 206319, 221208, 275092, 412638, 550184, 825276, 894049, 1650552, 1788098, 2682147, 3576196, 5364294, 7152392, 10728588, 21457176]

約数ペア:

[(1, 21457176), (2, 10728588), (3, 7152392), (4, 5364294), (6, 3576196), (8, 2682147), (12, 1788098), (13, 1650552), (24, 894049), (26, 825276), (39, 550184), (52, 412638), (78, 275092), (97, 221208), (104, 206319), (156, 137546), (194, 110604), (291, 73736), (312, 68773), (388, 55302), (582, 36868), (709, 30264), (776, 27651), (1164, 18434), (1261, 17016), (1418, 15132), (2127, 10088), (2328, 9217), (2522, 8508), (2836, 7566), (3783, 5672), (4254, 5044)]