19939356

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:379

約数の個数: 72

約数和(自身を含む): 53071200

約数和(自身を除く): 33131844

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 71, 87, 116, 142, 174, 213, 261, 269, 284, 348, 426, 522, 538, 639, 807, 852, 1044, 1076, 1278, 1614, 2059, 2421, 2556, 3228, 4118, 4842, 6177, 7801, 8236, 9684, 12354, 15602, 18531, 19099, 23403, 24708, 31204, 37062, 38198, 46806, 57297, 70209, 74124, 76396, 93612, 114594, 140418, 171891, 229188, 280836, 343782, 553871, 687564, 1107742, 1661613, 2215484, 3323226, 4984839, 6646452, 9969678, 19939356]

約数ペア:

[(1, 19939356), (2, 9969678), (3, 6646452), (4, 4984839), (6, 3323226), (9, 2215484), (12, 1661613), (18, 1107742), (29, 687564), (36, 553871), (58, 343782), (71, 280836), (87, 229188), (116, 171891), (142, 140418), (174, 114594), (213, 93612), (261, 76396), (269, 74124), (284, 70209), (348, 57297), (426, 46806), (522, 38198), (538, 37062), (639, 31204), (807, 24708), (852, 23403), (1044, 19099), (1076, 18531), (1278, 15602), (1614, 12354), (2059, 9684), (2421, 8236), (2556, 7801), (3228, 6177), (4118, 4842)]