21104512

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1153}}^1$

素因数の和:1191

約数の個数: 64

約数和(自身を含む): 49437360

約数和(自身を除く): 28332848

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 64, 88, 104, 128, 143, 176, 208, 286, 352, 416, 572, 704, 832, 1144, 1153, 1408, 1664, 2288, 2306, 4576, 4612, 9152, 9224, 12683, 14989, 18304, 18448, 25366, 29978, 36896, 50732, 59956, 73792, 101464, 119912, 147584, 164879, 202928, 239824, 329758, 405856, 479648, 659516, 811712, 959296, 1319032, 1623424, 1918592, 2638064, 5276128, 10552256, 21104512]

約数ペア:

[(1, 21104512), (2, 10552256), (4, 5276128), (8, 2638064), (11, 1918592), (13, 1623424), (16, 1319032), (22, 959296), (26, 811712), (32, 659516), (44, 479648), (52, 405856), (64, 329758), (88, 239824), (104, 202928), (128, 164879), (143, 147584), (176, 119912), (208, 101464), (286, 73792), (352, 59956), (416, 50732), (572, 36896), (704, 29978), (832, 25366), (1144, 18448), (1153, 18304), (1408, 14989), (1664, 12683), (2288, 9224), (2306, 9152), (4576, 4612)]