21202688

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 47731488

約数和(自身を除く): 26528800

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 52, 64, 92, 104, 128, 184, 208, 256, 277, 299, 368, 416, 554, 598, 736, 832, 1108, 1196, 1472, 1664, 2216, 2392, 2944, 3328, 3601, 4432, 4784, 5888, 6371, 7202, 8864, 9568, 12742, 14404, 17728, 19136, 25484, 28808, 35456, 38272, 50968, 57616, 70912, 76544, 82823, 101936, 115232, 165646, 203872, 230464, 331292, 407744, 460928, 662584, 815488, 921856, 1325168, 1630976, 2650336, 5300672, 10601344, 21202688]

約数ペア:

[(1, 21202688), (2, 10601344), (4, 5300672), (8, 2650336), (13, 1630976), (16, 1325168), (23, 921856), (26, 815488), (32, 662584), (46, 460928), (52, 407744), (64, 331292), (92, 230464), (104, 203872), (128, 165646), (184, 115232), (208, 101936), (256, 82823), (277, 76544), (299, 70912), (368, 57616), (416, 50968), (554, 38272), (598, 35456), (736, 28808), (832, 25484), (1108, 19136), (1196, 17728), (1472, 14404), (1664, 12742), (2216, 9568), (2392, 8864), (2944, 7202), (3328, 6371), (3601, 5888), (4432, 4784)]