19209804579

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{140321}}^1$

素因数の和:140428

約数の個数: 48

約数和(自身を含む): 33098030784

約数和(自身を除く): 13888226205

約数列:

[1, 3, 7, 9, 21, 41, 53, 63, 123, 159, 287, 369, 371, 477, 861, 1113, 2173, 2583, 3339, 6519, 15211, 19557, 45633, 136899, 140321, 420963, 982247, 1262889, 2946741, 5753161, 7437013, 8840223, 17259483, 22311039, 40272127, 51778449, 52059091, 66933117, 120816381, 156177273, 304917533, 362449143, 468531819, 914752599, 2134422731, 2744257797, 6403268193, 19209804579]

約数ペア:

[(1, 19209804579), (3, 6403268193), (7, 2744257797), (9, 2134422731), (21, 914752599), (41, 468531819), (53, 362449143), (63, 304917533), (123, 156177273), (159, 120816381), (287, 66933117), (369, 52059091), (371, 51778449), (477, 40272127), (861, 22311039), (1113, 17259483), (2173, 8840223), (2583, 7437013), (3339, 5753161), (6519, 2946741), (15211, 1262889), (19557, 982247), (45633, 420963), (136899, 140321)]