20560449

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:119

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 15727551

約数列:

[1, 3, 7, 13, 21, 29, 39, 49, 53, 87, 91, 147, 159, 203, 273, 343, 371, 377, 609, 637, 689, 1029, 1113, 1131, 1421, 1537, 1911, 2067, 2597, 2639, 4263, 4459, 4611, 4823, 7791, 7917, 9947, 10759, 13377, 14469, 18179, 18473, 19981, 29841, 32277, 33761, 54537, 55419, 59943, 75313, 101283, 129311, 139867, 225939, 236327, 387933, 419601, 527191, 708981, 979069, 1581573, 2937207, 6853483, 20560449]

約数ペア:

[(1, 20560449), (3, 6853483), (7, 2937207), (13, 1581573), (21, 979069), (29, 708981), (39, 527191), (49, 419601), (53, 387933), (87, 236327), (91, 225939), (147, 139867), (159, 129311), (203, 101283), (273, 75313), (343, 59943), (371, 55419), (377, 54537), (609, 33761), (637, 32277), (689, 29841), (1029, 19981), (1113, 18473), (1131, 18179), (1421, 14469), (1537, 13377), (1911, 10759), (2067, 9947), (2597, 7917), (2639, 7791), (4263, 4823), (4459, 4611)]