21256043296

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1260439}}^1$

素因数の和:1260497

約数の個数: 48

約数和(自身を含む): 45738846720

約数和(自身を除く): 24482803424

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 68, 124, 136, 248, 272, 496, 527, 544, 992, 1054, 2108, 4216, 8432, 16864, 1260439, 2520878, 5041756, 10083512, 20167024, 21427463, 39073609, 40334048, 42854926, 78147218, 85709852, 156294436, 171419704, 312588872, 342839408, 625177744, 664251353, 685678816, 1250355488, 1328502706, 2657005412, 5314010824, 10628021648, 21256043296]

約数ペア:

[(1, 21256043296), (2, 10628021648), (4, 5314010824), (8, 2657005412), (16, 1328502706), (17, 1250355488), (31, 685678816), (32, 664251353), (34, 625177744), (62, 342839408), (68, 312588872), (124, 171419704), (136, 156294436), (248, 85709852), (272, 78147218), (496, 42854926), (527, 40334048), (544, 39073609), (992, 21427463), (1054, 20167024), (2108, 10083512), (4216, 5041756), (8432, 2520878), (16864, 1260439)]