20055519

素因数分解:

$3^6\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 56

約数和(自身を含む): 34154064

約数和(自身を除く): 14098545

約数列:

[1, 3, 9, 11, 27, 33, 41, 61, 81, 99, 123, 183, 243, 297, 369, 451, 549, 671, 729, 891, 1107, 1353, 1647, 2013, 2501, 2673, 3321, 4059, 4941, 6039, 7503, 8019, 9963, 12177, 14823, 18117, 22509, 27511, 29889, 36531, 44469, 54351, 67527, 82533, 109593, 163053, 202581, 247599, 328779, 489159, 607743, 742797, 1823229, 2228391, 6685173, 20055519]

約数ペア:

[(1, 20055519), (3, 6685173), (9, 2228391), (11, 1823229), (27, 742797), (33, 607743), (41, 489159), (61, 328779), (81, 247599), (99, 202581), (123, 163053), (183, 109593), (243, 82533), (297, 67527), (369, 54351), (451, 44469), (549, 36531), (671, 29889), (729, 27511), (891, 22509), (1107, 18117), (1353, 14823), (1647, 12177), (2013, 9963), (2501, 8019), (2673, 7503), (3321, 6039), (4059, 4941)]