19490744

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{653}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 46146240

約数和(自身を除く): 26655496

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 41, 52, 56, 82, 91, 104, 164, 182, 287, 328, 364, 533, 574, 653, 728, 1066, 1148, 1306, 2132, 2296, 2612, 3731, 4264, 4571, 5224, 7462, 8489, 9142, 14924, 16978, 18284, 26773, 29848, 33956, 36568, 53546, 59423, 67912, 107092, 118846, 187411, 214184, 237692, 348049, 374822, 475384, 696098, 749644, 1392196, 1499288, 2436343, 2784392, 4872686, 9745372, 19490744]

約数ペア:

[(1, 19490744), (2, 9745372), (4, 4872686), (7, 2784392), (8, 2436343), (13, 1499288), (14, 1392196), (26, 749644), (28, 696098), (41, 475384), (52, 374822), (56, 348049), (82, 237692), (91, 214184), (104, 187411), (164, 118846), (182, 107092), (287, 67912), (328, 59423), (364, 53546), (533, 36568), (574, 33956), (653, 29848), (728, 26773), (1066, 18284), (1148, 16978), (1306, 14924), (2132, 9142), (2296, 8489), (2612, 7462), (3731, 5224), (4264, 4571)]