21209344

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{6373}}^1$

素因数の和:6402

約数の個数: 36

約数和(自身を含む): 45599596

約数和(自身を除く): 24390252

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 832, 1664, 3328, 6373, 12746, 25492, 50984, 82849, 101968, 165698, 203936, 331396, 407872, 662792, 815744, 1325584, 1631488, 2651168, 5302336, 10604672, 21209344]

約数ペア:

[(1, 21209344), (2, 10604672), (4, 5302336), (8, 2651168), (13, 1631488), (16, 1325584), (26, 815744), (32, 662792), (52, 407872), (64, 331396), (104, 203936), (128, 165698), (208, 101968), (256, 82849), (416, 50984), (832, 25492), (1664, 12746), (3328, 6373)]