19798336

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{587}}^1$

素因数の和:647

約数の個数: 56

約数和(自身を含む): 43013376

約数和(自身を除く): 23215040

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 64, 68, 124, 136, 248, 272, 496, 527, 544, 587, 992, 1054, 1088, 1174, 1984, 2108, 2348, 4216, 4696, 8432, 9392, 9979, 16864, 18197, 18784, 19958, 33728, 36394, 37568, 39916, 72788, 79832, 145576, 159664, 291152, 309349, 319328, 582304, 618698, 638656, 1164608, 1237396, 2474792, 4949584, 9899168, 19798336]

約数ペア:

[(1, 19798336), (2, 9899168), (4, 4949584), (8, 2474792), (16, 1237396), (17, 1164608), (31, 638656), (32, 618698), (34, 582304), (62, 319328), (64, 309349), (68, 291152), (124, 159664), (136, 145576), (248, 79832), (272, 72788), (496, 39916), (527, 37568), (544, 36394), (587, 33728), (992, 19958), (1054, 18784), (1088, 18197), (1174, 16864), (1984, 9979), (2108, 9392), (2348, 8432), (4216, 4696)]