21042688

素因数分解:

$2^9\times {\mathrm{73}}^1\times {\mathrm{563}}^1$

素因数の和:654

約数の個数: 40

約数和(自身を含む): 42695928

約数和(自身を除く): 21653240

約数列:

[1, 2, 4, 8, 16, 32, 64, 73, 128, 146, 256, 292, 512, 563, 584, 1126, 1168, 2252, 2336, 4504, 4672, 9008, 9344, 18016, 18688, 36032, 37376, 41099, 72064, 82198, 144128, 164396, 288256, 328792, 657584, 1315168, 2630336, 5260672, 10521344, 21042688]

約数ペア:

[(1, 21042688), (2, 10521344), (4, 5260672), (8, 2630336), (16, 1315168), (32, 657584), (64, 328792), (73, 288256), (128, 164396), (146, 144128), (256, 82198), (292, 72064), (512, 41099), (563, 37376), (584, 36032), (1126, 18688), (1168, 18016), (2252, 9344), (2336, 9008), (4504, 4672)]