21819296

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2111}}^1$

素因数の和:2157

約数の個数: 48

約数和(自身を含む): 47900160

約数和(自身を除く): 26080864

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 68, 76, 136, 152, 272, 304, 323, 544, 608, 646, 1292, 2111, 2584, 4222, 5168, 8444, 10336, 16888, 33776, 35887, 40109, 67552, 71774, 80218, 143548, 160436, 287096, 320872, 574192, 641744, 681853, 1148384, 1283488, 1363706, 2727412, 5454824, 10909648, 21819296]

約数ペア:

[(1, 21819296), (2, 10909648), (4, 5454824), (8, 2727412), (16, 1363706), (17, 1283488), (19, 1148384), (32, 681853), (34, 641744), (38, 574192), (68, 320872), (76, 287096), (136, 160436), (152, 143548), (272, 80218), (304, 71774), (323, 67552), (544, 40109), (608, 35887), (646, 33776), (1292, 16888), (2111, 10336), (2584, 8444), (4222, 5168)]