19707165

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1$

素因数の和:339

約数の個数: 64

約数和(自身を含む): 38430720

約数和(自身を除く): 18723555

約数列:

[1, 3, 5, 9, 15, 17, 27, 31, 45, 51, 85, 93, 135, 153, 155, 255, 277, 279, 459, 465, 527, 765, 831, 837, 1385, 1395, 1581, 2295, 2493, 2635, 4155, 4185, 4709, 4743, 7479, 7905, 8587, 12465, 14127, 14229, 23545, 23715, 25761, 37395, 42381, 42935, 70635, 71145, 77283, 127143, 128805, 145979, 211905, 231849, 386415, 437937, 635715, 729895, 1159245, 1313811, 2189685, 3941433, 6569055, 19707165]

約数ペア:

[(1, 19707165), (3, 6569055), (5, 3941433), (9, 2189685), (15, 1313811), (17, 1159245), (27, 729895), (31, 635715), (45, 437937), (51, 386415), (85, 231849), (93, 211905), (135, 145979), (153, 128805), (155, 127143), (255, 77283), (277, 71145), (279, 70635), (459, 42935), (465, 42381), (527, 37395), (765, 25761), (831, 23715), (837, 23545), (1385, 14229), (1395, 14127), (1581, 12465), (2295, 8587), (2493, 7905), (2635, 7479), (4155, 4743), (4185, 4709)]