221721705

素因数分解:

$3^6\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1031}}^1$

素因数の和:1113

約数の個数: 56

約数和(自身を含む): 406071360

約数和(自身を除く): 184349655

約数列:

[1, 3, 5, 9, 15, 27, 45, 59, 81, 135, 177, 243, 295, 405, 531, 729, 885, 1031, 1215, 1593, 2655, 3093, 3645, 4779, 5155, 7965, 9279, 14337, 15465, 23895, 27837, 43011, 46395, 60829, 71685, 83511, 139185, 182487, 215055, 250533, 304145, 417555, 547461, 751599, 912435, 1252665, 1642383, 2737305, 3757995, 4927149, 8211915, 14781447, 24635745, 44344341, 73907235, 221721705]

約数ペア:

[(1, 221721705), (3, 73907235), (5, 44344341), (9, 24635745), (15, 14781447), (27, 8211915), (45, 4927149), (59, 3757995), (81, 2737305), (135, 1642383), (177, 1252665), (243, 912435), (295, 751599), (405, 547461), (531, 417555), (729, 304145), (885, 250533), (1031, 215055), (1215, 182487), (1593, 139185), (2655, 83511), (3093, 71685), (3645, 60829), (4779, 46395), (5155, 43011), (7965, 27837), (9279, 23895), (14337, 15465)]